List of elected British politicians who have changed party affiliation

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This is a list of members of the House of Commons of the United Kingdom, the House of Lords, British members of the European Parliament, members of the British devolved legislatures (such as the Scottish Parliament, Senedd, and Northern Ireland Assembly) and Police and Crime Commissioners (PCCs) who have changed their party affiliation (i.e. abandoning a previous party membership to take up a new one) or who have resigned from, been suspended from or been expelled from their previous party affiliation, making them independents. When a member of a legislature switches from one party to another, this is called crossing the floor. The list details the dates, members involved, previous and new party affiliations, and an explanation for their switch.

Contents

Members of Parliament who have changed party affiliation

Date Member Before After Notes

MPs 1680–1832
1698 John Grubham Howe style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory
1707 Sir Robert Harley style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory
1725 John Montagu, Viscount Hinchingbrooke style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory
Sir William Pulteney style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory
1793 William Windham style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
1795 Robert Stewart, Viscount Castlereagh style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory
Thomas Pelham style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory
1810 Charles Williams-Wynn style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory Tried to create a third political party, failed and joined the Tories.
1822 Henry John Temple, 3rd Viscount Palmerston style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig
1828 Charles Williams-Wynn style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig Was not offered a position in Government.
1834 style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory Offered position in Government.

1832–1847 Parliaments
1834 Sir James Graham, 2nd Baronet style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Resigned as First Lord of the Admiralty
Lord Stanley style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Resigned as Secretary of State for War and the Colonies[1]
Lord George Bentinck style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Bingham Baring style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
1846 William Ewart Gladstone style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite Resigned as Secretary of State for War and the Colonies
Henry Goulburn style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite Resigned as Chancellor of the Exchequer
Sir James Graham, 2nd Baronet style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite Resigned as Home Secretary
Sidney Herbert style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite Resigned as Secretary at War
John Young style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite Resigned as Parliamentary Secretary to the Treasury
Edward Cardwell style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite Resigned as Financial Secretary to the Treasury

1847–1886 Parliaments
1847 Sir John Young, 2nd Baronet style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite
Lord Ernest Bruce style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite
Henry Bingham Baring style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite
1852 Frederick Peel style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite
Henry FitzRoy style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite
James Stuart-Wortley style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite
1853 Lord Alfred Hervey style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite
Sir John Young, 2nd Baronet style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
1859 William Ewart Gladstone style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal
Frederick Peel style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal
1868 Edward James Saunderson style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
1879 James Yeaman style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative

1886–1900 Parliaments
1886 Joseph Chamberlain style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist Created the Liberal Unionist Party after disagreeing with William Gladstone and splitting over Home Rule for Ireland
Was the President of the Board of Trade until his defection.
Sir Henry James style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist Was the Attorney-General until his defection.
Edward Heneage style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist Was the Chancellor of the Duchy of Lancaster until his defection.
The Marquess of Hartington style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist Was the Secretary of State for War until his defection.
Sir George Otto Trevelyan, 2nd Baronet style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist Was the Secretary for Scotland until his defection.[2]
William Shepherd Allen style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Arthur Peel style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
John Boyd Kinnear style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
William Shepherd Allen style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Walter Morrison style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Arthur Pease style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Arthur Pease style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Henry Vivian style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
John Corbett style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
William Cornwallis-West style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
William Crossman style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
John Westlake style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Henry Brand style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Donald Currie style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
George Dixon style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Sir Cuthbert Quilter, 1st Baronet style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
John William Ramsden style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Charles Pelham Villiers style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Sir Robert Anstruther, 5th Baronet style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Sir George Macpherson-Grant, 3rd Baronet style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Ernest Noel style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Alexander Craig Sellar style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
John Wilson style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
David Davies style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Robert Bickersteth style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Edward Watkin style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Viscount Lymington style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Viscount Wolmer style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Viscount Ebrington style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Viscount Howick style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Viscount Baring style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Viscount Lambton style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Lord Richard Grosvenor style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Lord Edward Cavendish style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Sir Thomas Grove, 1st Baronet style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Sir Robert Jardine, 1st Baronet style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Sir Savile Brinton Crossley, 2nd Baronet style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Sir John St Aubyn, 2nd Baronet style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Hugh Elliot style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Arthur Elliot style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Andrew Fairbairn style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Sir Charles Seely, 1st Baronet style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Sir Alexander Brown, 1st Baronet style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Savile Crossley style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Sir Henry Wiggin, 1st Baronet style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
John Lubbock style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Francis Taylor style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Richard Frederick Fotheringham Campbell style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
John Wentworth-FitzWilliam style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Archibald Corbett style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Jesse Collings style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Thomas Buchanan style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
George Dixon style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Thomas Sutherland style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Charles James Monk style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
William Kenrick style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Robert Jasper More style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Cathcart Wason style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Lewis Fry style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
John Corbett style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Mitchell Henry style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Richard Biddulph Martin style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Sir John Pender style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Henry Meysey-Thompson style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
George Pitt-Lewis style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Alfred Barnes style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Lewis McIver style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Richard Chamberlain style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
George Salis-Schwabe style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Francis William Maclean style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Francis Bingham Mildmay style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Hamar Alfred Bass style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Henry Hobhouse style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
William Pirrie Sinclair style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
John Jenkins style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Robert Finlay style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
William Bickford-Smith style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Robert Thornhagh Gurdon style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Charles Fraser-Mackintosh style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Lewis Fry style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
George Hastings style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Henry Howard style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Joseph Powell-Williams style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Thomas Richardson style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Sir Julian Goldsmid, 3rd Baronet style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Peter Rylands style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
John Bright style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
William Kenrick style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Jesse Collings style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
James William Barclay style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Frederick William Grafton style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Alfred Barnes style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Michael Biddulph style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Nevil Story Maskelyne style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Edmond Wodehouse style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
William Sproston Caine style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Henry Frederick Beaumont style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Greville Richard Vernon style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
1888 Henry Wentworth-FitzWilliam style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Cunninghame Graham style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Thomas Buchanan style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal
Sir Thomas Grove, 1st Baronet style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal
1891 All Irish Conservative MPs style="width: 5px; background-color: #0087DC;" data-sort-value="Irish Conservative Party" | Irish Conservative style="width: 5px; background-color: #9999FF;" data-sort-value="Irish Unionist Alliance" | Irish Unionist Conservatives in Ireland merged into new party.[3]
1892 Benjamin Hingley style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal
1893 George Joachim Goschen style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Thomas Henry Bolton style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
William Grenfell style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
1898 George Doughty style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
1899 Leonard Courtney style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal
1900 George Whiteley style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  Stood for Pudsey as Liberal in the 1900 election after standing down as Conservative MP for Stockport.[4]

1900–1906 Parliament
1902 Cathcart Wason style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal Resigned seat and fought by-election as an Independent Liberal
1903 Michael Foster style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  
John William Wilson style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  
31 May 1904 Winston Churchill style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal Changed party over dismay at the Conservative party becoming more "protectionist"[5] Returned to Conservatives in the 1920s, stating "Anyone can rat, but it takes a certain amount of ingenuity to re-rat".[6]
1904 John Eustace Jameson style="width: 5px; background-color: #99FF66;" data-sort-value="Irish Parliamentary Party" | Irish Parliamentary style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative  
Jack Seely style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative  
Ivor Guest style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  
Ernest Hatch style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  
George Kemp style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  
Lord Richard Cavendish style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  
Edward Hain style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  
Richard Bell style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  
November 1904 Richard Rigg style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Joined Conservatives because "he found himself in agreement with the Conservative government on so many key issues"[7]
1905 John Dickson-Poynder style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  
1906 John Eldon Gorst style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #FFFFDD;" data-sort-value="Free Trader" | Free Trader  
Jack Seely style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  

1906–December 1910 Parliaments
1906 Carlyon Bellairs style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist  
Austin Taylor style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  
John William Wilson style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  
1907 Leslie Renton style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist  
1908 Archibald Corbett style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal Re-joined Liberal Party
1909 Alexander Cross style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  
Arthur Elliot style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Stood as an independent
Thomas Kincaid-Smith style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Stood as an independent
Enoch Edwards style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
Frederick Hall style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
William Johnson style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
1910 William Abraham style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
William Edwin Harvey style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
James Haslam style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
Thomas Richards style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
Albert Stanley style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
John Wadsworth style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
John Williams style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
Harold Cox style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #FFFFDD;" data-sort-value="Free Trader" | Free Trader

December 1910–1918 Parliament
May 1912 35 MPs style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Conservative and Liberal Unionist parties merged.
John Gordon style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #9999FF;" data-sort-value="Irish Unionist Alliance" | Irish Unionist Irish Liberal Unionist and Unionist parties merged.
30 March 1914 William Edwin Harvey style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal Resigned over the party's treatment of Barnet Kenyon, before and after the 1913 Chesterfield by-election, particularly regarding miner's representation.[8]
1914 William Johnson style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal Expelled from the Labour Party for addressing Liberal Party meetings.[9]
1915 John Hancock style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal Expelled from the Labour Party.[10]
John Wadsworth style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  
William Abraham style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal  
1917 Sir Richard Cooper, 2nd Baronet style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Those who defected in 1917 actually joined the National Party.
However, before the general election of 1918 all members apart from Croft and Cooper had returned to the Conservatives or had lost their seats.
Henry Page Croft style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Richard Hamilton Rawson style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent  
Alan Hughes Burgoyne style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent  
Douglas George Carnegie style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent  
Viscount Duncannon style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent  
Rowland Hunt style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent  [11]
Edward Fitzroy style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent  
1918 Harland Bowden style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #0077FF;" data-sort-value="Independent Unionist" | Independent Unionist  
Arthur Strauss style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour  
Charles Trevelyan style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Arthur Ponsonby style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Contested as an Independent Democrat.
R. L. Outhwaite style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #FFFFAA;" data-sort-value="Independent Liberal" | Independent Liberal
Leo Chiozza Money style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
Edward John style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour

1918–1922 Parliament
1918–1922 Many style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent During this Parliament it is difficult to track moves by many MPs between the pro- and anti-Coalition wings of their parties.
1918 George Nicoll Barnes style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour Refused to resign from the Lloyd George Coalition
1919 Cecil L'Estrange Malone style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
1920 Oswald Mosley style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Left over the Conservative Party's Irish policy, specifically the use of Black and Tans.
1921 All Irish Unionist MPs style="width: 5px; background-color: #9999FF;" data-sort-value="Irish Unionist Alliance" | Irish Unionist style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP Creation of Northern Ireland after partition of Ireland.
Thomas Harbison style="width: 5px; background-color: #99FF66;" data-sort-value="Irish Parliamentary Party" | Irish Parliamentary style="width: 5px; background-color: #32cd32;" data-sort-value="Nationalist Party (Northern Ireland)" | Nationalist
1922 John Hope style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #FFFFAA;" data-sort-value="Independent Liberal" | Independent Liberal Rejected as a candidate on the grounds that he had not made a single speech during his 24 years in Parliament.[12]
T. P. O'Connor style="width: 5px; background-color: #99FF66;" data-sort-value="Irish Parliamentary Party" | Irish Parliamentary style="width: 5px; background-color: #99FF66;" data-sort-value="Nationalist Party (Ireland)" | Irish Nationalist Irish Parliamentary Party no longer represented in Parliament. It dissolved after the Irish Free State's establishment.

1922–1923 Parliament
1923 Gordon Ralph Hall Caine style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Took the Conservative whip
James Malcolm Monteith Erskine style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative

1923–1924 Parliament
February 1924 George M. Ll. Davies style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Originally elected as an "Independent Christian Pacifist"; later took the Labour whip but did not join the party

1924–1929 Parliament
1924 Oswald Mosley style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour  
January 1926[13] Sir Alfred Mond, Bt style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Defected after falling out with Lloyd George
1926 Joseph Kenworthy style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Resigned in opposition of Lloyd George's leadership
1927 George Alfred Spencer style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from the Labour party for brokering a local settlement during the General Strike.[14]
Leslie Haden-Guest style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned in protest of Labour's opposition of sending troops to Shanghai[15]
Sir Robert Newman, Bt style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip withdrawn after a dispute between Newman and his local Conservative association, leading to his deselection as a Conservative parliamentary candidate, as well as differences with the party leadership surrounding his support for free-trade policies.[11]
1928 Sir Basil Peto, Bt style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip withdrawn in April 1928 due to policy disagreements with Stanley Baldwin's Conservative government.[11]
style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Whip restored in November 1928 after an overwhelming vote of confidence in Peto by his local party executive.[11]
1929 Thomas Robinson style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent

1929–1931 Parliament
1931 Oswald Mosley style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: black;" data-sort-value="New Party (UK)" | New Party Created the New Party.
Lady Cynthia Mosley style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: black;" data-sort-value="New Party (UK)" | New Party Joined the New Party.
Oliver Baldwin style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: black;" data-sort-value="New Party (UK)" | New Party Joined the New Party but left after one day and sat as an independent.
style="width: 5px; background-color: black;" data-sort-value="New Party (UK)" | New Party style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Robert Forgan style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: black;" data-sort-value="New Party (UK)" | New Party Joined the New Party
W. E. D. Allen style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: black;" data-sort-value="New Party (UK)" | New Party Joined the New Party
Cecil Dudgeon style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: black;" data-sort-value="New Party (UK)" | New Party Joined the New Party
February 1931 John Strachey style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: black;" data-sort-value="New Party (UK)" | New Party Joined the New Party
June 1931 style="width: 5px; background-color: black;" data-sort-value="New Party (UK)" | New Party style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Did not agree with the party's drift towards fascism
24 August 1931 Ramsay MacDonald style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour Formed the National Government
Malcolm MacDonald style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour Joined the National Government
25 August 1931 Philip Snowden style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour Joined the National Government
J. H. Thomas style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour
1931 William Jowitt style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour Followed MacDonald on 28 August
George Gillett style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour Followed MacDonald on 31 August
Ernest Bennett style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour Followed MacDonald on 1 September
George Knight style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour Followed MacDonald on 2 September
James Lovat-Fraser style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour Followed MacDonald on 2 September
Craigie Aitchison style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour Followed MacDonald on 3 September
Samuel Rosbotham style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour Followed MacDonald on 5 September
Archibald Church style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour Followed MacDonald on 8 September.
Richard Denman style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour Followed MacDonald on 10 September.
Sydney Frank Markham style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour Followed MacDonald on 16 September.
Derwent Hall Caine style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: green;" data-sort-value="National Labour Party (UK)" | National Labour Followed MacDonald on 23 September.

1935–1945 Parliament
1935 Katharine Stewart-Murray, Duchess of Atholl style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whip over the India Bill and the "national-socialist tendency" of the government's domestic policy.[16]
style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
1937 style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whip over Anglo-Italian Agreement[16]
style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
1938 style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned a third time, due to opposing Neville Chamberlain's policy of appeasement of Adolf Hitler before being deselected by her local party[16]
November 1939 Aneurin Bevan style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from the Labour Party for seven months for supporting a "popular front"
Sir Stafford Cripps style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
George Strauss style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Clement Davies style="width: 5px; background-color: #AFEEEE;" data-sort-value="National Liberal Party (UK, 1931)" | Liberal National style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whips of both the Liberal Nationals and the National Government in opposition to Chamberlain.[17]
March 1940 Denis Pritt style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from the Labour Party over his defence of the Soviet invasion of Finland[18]
1942 Murdoch Macdonald style="width: 5px; background-color: #AFEEEE;" data-sort-value="National Liberal Party (UK, 1931)" | Liberal National style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Edgar Granville style="width: 5px; background-color: #AFEEEE;" data-sort-value="National Liberal Party (UK, 1931)" | Liberal National style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Clement Davies style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal Returned to the Liberal Party after a decade.
February 1942 Stephen King-Hall style="width: 5px; background-color: green;" data-sort-value="National Labour Organisation" | National Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Opposed the party's considerations in wartime
May 1942 Alec Cunningham-Reid style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip withdrawn after a dispute with the national Conservative leadership.[11]
July 1942 Sir Richard Acland style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #ff7f50;" data-sort-value="Common Wealth Party" | Common Wealth Formed the Common Wealth Party after a merger of the 1941 Committee and the Forward March movement
Vernon Bartlett style="width: 5px; background-color: orange;" data-sort-value="Independent Progressive" | Independent Progressive style="width: 5px; background-color: #ff7f50;" data-sort-value="Common Wealth Party" | Common Wealth Fought the 1945 general election as an independent
May 1943 Kenneth Lindsay style="width: 5px; background-color: green;" data-sort-value="National Labour Organisation" | National Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
November 1944 John Eric Loverseed style="width: 5px; background-color: #ff7f50;" data-sort-value="Common Wealth Party" | Common Wealth style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
February 1945 Sir Stafford Cripps style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Rejoined the Labour Party[19]
April 1945 Edgar Granville style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal
May 1945 John Eric Loverseed style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour

1945–1950 Parliament
22 April 1946 Ernest Millington style="width: 5px; background-color: #ff7f50;" data-sort-value="Common Wealth Party" | Common Wealth style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour  
21 October 1946 Tom Horabin style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Declared support for the Labour government
26 March 1947 John McGovern style="width: 5px; background-color: #B22222;" data-sort-value="Independent Labour Party" | Ind. Labour Party style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour  
23 July 1947 Rev Campbell Stephen style="width: 5px; background-color: #B22222;" data-sort-value="Independent Labour Party" | Ind. Labour Party style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Granted the Labour whip on 21 October 1947.
21 October 1947 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
29 October 1947 James Carmichael style="width: 5px; background-color: #B22222;" data-sort-value="Independent Labour Party" | Ind. Labour Party style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Granted the Labour whip on 3 November 1947.
3 November 1947 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
4 November 1947 Evelyn Walkden style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Following censure by the House for his conduct.
18 November 1947 Tom Horabin style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
22 March 1948 John Mackie style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative  
28 April 1948 John Platts-Mills style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from party for sending supportive telegram to Pietro Nenni, Italian socialist allied with the Communists.
16 May 1948 Alfred Edwards style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Expelled from party for opposition to nationalisation of steel.
3 October 1948 Eric Gandar Dower style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Dispute with local association.[20]
26 October 1948 Ivor Thomas style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Resigned due to opposition to nationalisation of steel.
28 October 1948 Gwilym Lloyd George style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip removed;[21] Lloyd-George had been sitting on the Conservative front bench since 1945 but had continued to receive the Liberal whip "as a matter of courtesy"
18 May 1949 Leslie Solley style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from party for persistently opposing government policies.
Konni Zilliacus style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
27 July 1949 Lester Hutchinson style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from party for opposition to government foreign policy.

1950–1951 Parliament
4 May 1950 John MacLeod style="width: 5px; background-color: #FFFFAA;" data-sort-value="Independent Liberal" | Independent Liberal style="width: 5px; background-color: #AFEEEE;" data-sort-value="National Liberal Party (UK, 1931)" | Liberal National
4 August 1950 Raymond Blackburn style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Called for Winston Churchill to be Prime Minister in a coalition government.

1951–1955 Parliament
2 June 1954 John Mellor style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whip over increase in MPs' salaries (Mellor was opposed).
14 July 1954 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Harry Legge-Bourke style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Opposed to policy of withdrawing British base in Suez canal zone.
18 October 1954 Harry Legge-Bourke style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
23 November 1954 S. O. Davies style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip withdrawn after breaking the whip over German rearmament.
George Craddock style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Ernest Fernyhough style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Emrys Hughes style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Sydney Silverman style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Victor Yates style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
John McGovern style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
10 March 1955 Richard Acland style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Opposed to party policy on nuclear arms and resigned his seat.
16 March 1955 Aneurin Bevan style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip withdrawn for challenging the authority of Party leader.
April 1955 S. O. Davies style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Whip restored.
George Craddock style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
Ernest Fernyhough style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
Emrys Hughes style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
Sydney Silverman style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
Victor Yates style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
John McGovern style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
28 April 1955 Aneurin Bevan style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour

1955–1959 Parliament
8 November 1956 Cyril Banks style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whip over the Suez Crisis (Banks was friendly with Egypt). The whip was restored on 19 December 1958.
13 May 1957 Patrick Maitland style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whip over the Suez Crisis, wanting UK involvement in Suez to continue (whip restored 23 December 1957)
John Biggs-Davison style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whip over the Suez Crisis, wanting UK involvement in Suez to continue (whip restored 11 July 1958)
Anthony Fell style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Victor Montagu style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Lawrence Turner style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Paul Williams style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Angus Maude style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whip over the Suez Crisis, wanting UK involvement in Suez to continue and subsequently resigned their seat.
Victor Raikes style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
14 November 1957 Frank Medlicott style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whip over the Suez Crisis (Medlicott was opposed to the invasion). whiprestored 21 November 1958.
30 January 1959 David Robertson style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whip over policy on the Scottish highlands.

1959–1964 Parliament
16 March 1961 William Baxter style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip withdrawn for voting against the defence estimates. The whip was restored on 29 May 1963.
S. O. Davies style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Michael Foot style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Emrys Hughes style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Sydney Silverman style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
22 March 1961 Alan Brown style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Opposed to party defence policy.
Konni Zilliacus style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip suspended until January 1962 for writing critical article in Communist publication.
19 October 1961 William Duthie style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whip over policy on salmon fishing industry. The whip was restored on 15 November 1963.
4 May 1962 Alan Brown style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative  
23 January 1964 Dr Donald Johnson style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Dispute with local party.

1966–1970 Parliament
10 July 1966 Geoffrey Hirst style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative Failed to persuade party to vote against Prices and Incomes Bill.
8 December 1966 Reginald Paget style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned the whip because of opposition to United Nations sanctions on Rhodesia. The whip was restored on 15 June 1967.
10 January 1968 Julian Ridsdale style="width: 5px; background-color: #AFEEEE;" data-sort-value="National Liberal Party (UK, 1931)" | Liberal National style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Party disbanded
David Renton style="width: 5px; background-color: #AFEEEE;" data-sort-value="National Liberal Party (UK, 1931)" | Liberal National style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Joan Vickers style="width: 5px; background-color: #AFEEEE;" data-sort-value="National Liberal Party (UK, 1931)" | Liberal National style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
John Nott style="width: 5px; background-color: #AFEEEE;" data-sort-value="National Liberal Party (UK, 1931)" | Liberal National style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
18 January 1968 Desmond Donnelly style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Opposed to defence cuts 'east of Suez'
31 January 1968 Frank Allaun style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour whip suspended from 31 January 1968 to 29 February 1968.
Norman Atkinson style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Albert Booth style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
James Dickens style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
S. O. Davies style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Michael Foot style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Will Griffiths style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Dr John Dunwoody style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Eric Heffer style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Willie Hamilton style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Emrys Hughes style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Peter Jackson style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Anne Kerr style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Russell Kerr style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Malcolm Macmillan style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
John Mendelson style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Stanley Newens style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Christopher Norwood style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Stan Orme style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Trevor Park style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
John Ryan style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Sydney Silverman style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Tom Swain style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
Carol Johnson style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour

1970–1974 Parliament
24 August 1970 Gerry Fitt style="width: 5px; background-color: #85de59;" data-sort-value="Republican Labour Party" | Republican Labour style="width: 5px; background-color: #99FF66;" data-sort-value="Social Democratic and Labour Party" | SDLP Formed new party.
October 1970 Bernadette Devlin style="width: 5px; background-color: olive;" data-sort-value="Unity (Northern Ireland)" | Unity style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent (politician)" | Independent Declared that she would sit in Parliament as an independent socialist
30 September 1971 Ian Paisley style="width: 5px; background-color: #D46A4C;" data-sort-value="Protestant Unionist Party" | Protestant Unionist style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP Protestant Unionists merged into new party.
16 February 1972 Ray Gunter style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour Opposed to take-over of party by middle-class intellectuals.[22]
6 October 1972 Dick Taverne style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FF6600;" data-sort-value="Lincoln Democratic Labour Association" | Democratic Labour Dispute with local party. Simultaneously announced his intention to resign his seat and seek re-election.
18 December 1972 Stratton Mills style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Chose to remain an "independent unionist and Conservative" when the UUP withdrew from the Conservative whip
29 April 1973 style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #F6CB2F;" data-sort-value="Alliance Party of Northern Ireland" | Alliance  

1974 Parliament
9 July 1974 Christopher Mayhew style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal Believed Labour was too vulnerable to left takeover.

1974–1979 Parliament
11 October 1975 John Dunlop style="width: 5px; background-color: darkorange;" data-sort-value="Vanguard Progressive Unionist Party" | Vanguard style="width: 5px; background-color: #ff8c00;" data-sort-value="United Ulster Unionist Party" | UUUP Split with leadership over proposal for voluntary power-sharing in Northern Ireland
24 October 1975 James Kilfedder style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #0077FF;" data-sort-value="Independent Unionist" | Independent Unionist Opposed to the growth of support for the full integration of Northern Ireland into the United Kingdom, remained committed to devolution
19 November 1975 Robert Bradford style="width: 5px; background-color: darkorange;" data-sort-value="Vanguard Progressive Unionist Party" | Vanguard style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP Opposed to power-sharing.
7 April 1976 John Stonehouse style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Believed new Prime Minister James Callaghan did not have a mandate.
14 April 1976 John Stonehouse style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #801818;" data-sort-value="English National Party" | English National  
26 July 1976 Jim Sillars style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Scottish Labour Resigned from Labour over public spending cuts.
John Robertson style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
8 October 1977 Reg Prentice style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Believed Labour should be defeated at the next election.[23]
26 November 1977 William Craig style="width: 5px; background-color: darkorange;" data-sort-value="Vanguard Progressive Unionist Party" | Vanguard style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP Party wound up

1979–1983 Parliament
22 November 1979 Gerry Fitt style="width: 5px; background-color: #99FF66;" data-sort-value="Social Democratic and Labour Party" | SDLP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Socialist Dispute with party over talks process.
17 January 1980 James Kilfedder style="width: 5px; background-color: #0077FF;" data-sort-value="Independent Unionist" | Independent Unionist Ulster Progressive Unionist Party Formed party (renamed 'Ulster Popular Unionist Party' in March 1980).
20 February 1981 Richard Crawshaw style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic Resigned whip prior to launch of new party, which he joined on 2 March 1981.
Tom Ellis style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic Resigned whip prior to launch of new party, which he joined on 2 March 1981.
2 March 1981 Tom Bradley style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic Formed new party.
John Cartwright style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
John Horam style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Robert Maclennan style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
John Roper style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
David Owen style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Bill Rodgers style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Neville Sandelson style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Mike Thomas style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Ian Wrigglesworth style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
16 March 1981 Christopher Brocklebank-Fowler style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  
19 March 1981 Edward Lyons style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  
4 July 1981 James Wellbeloved style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  
7 September 1981 Michael O'Halloran style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  
1 October 1981 Dr Dickson Mabon style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  
5 October 1981 Bob Mitchell style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  
6 October 1981 David Ginsburg style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  
7 October 1981 James Dunn style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  
Tom McNally style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  
29 October 1981 Eric Ogden style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  
16 November 1981 John Grant style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  
30 November 1981 George Cunningham style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour  
2 December 1981 Ronald Brown style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  Defected to the SDP[24]
11 December 1981 Bruce Douglas-Mann style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour Subsequently, resigned his seat and restood unsuccessfully for the Social Democratic Party.
Jeffrey Thomas style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  
Ednyfed Hudson Davies style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  
22 January 1982 Bryan Magee style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour
12 March 1982 Bryan Magee style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
16 June 1982 George Cunningham style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic  
2 August 1982 Robert Mellish style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour Dispute with local party.[25]
10 February 1983 Michael O'Halloran style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour Not selected as a candidate for the subsequent election.

1983–1987 Parliament
31 January 1987 John Ryman style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent  

1987–1992 Parliament
3 March 1988 All 17 Liberal MPs style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Merger of the SDP and the Liberal Party as the "Social and Liberal Democrats", later Liberal Democrats.
3 March 1988 Robert Maclennan style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Merger of the SDP and the Liberal Party as the "Social and Liberal Democrats", later Liberal Democrats.
Charles Kennedy style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat
3 March 1988 Rosie Barnes style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK, 1988)" | Social Democrat Objected to the SDP's merger with the Liberal Party.
John Cartwright style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK, 1988)" | Social Democrat
David Owen style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK, 1988)" | Social Democrat
19 May 1988 Ron Brown style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip suspended over misconduct.
19 August 1988 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Whip restored.
14 March 1990 Dick Douglas style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Opposed to party acquiescence in administering the Poll Tax.
24 May 1990 Rosie Barnes style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK, 1988)" | Social Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Continuing SDP dissolved, sat as independent Social Democrats.
John Cartwright style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK, 1988)" | Social Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
David Owen style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK, 1988)" | Social Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
4 October 1990 Dick Douglas style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP  
25 September 1991 Dave Nellist style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip suspended over links to the Militant tendency.
Terry Fields style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
13 March 1992 John Browne style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative Whip removed for intention to stand against official candidate after he had been deselected.

1992–1997 Parliament
23 July 1993 Rupert Allason style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative Whip suspended until 1 July 1994 after failing to back Conservative government in confidence motion.
29 November 1994 Nicholas Budgen style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative whip suspended until 24 April 1995 after failing to back Conservative government in confidence motion.
Michael Carttiss style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative
Christopher Gill style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative
Teresa Gorman style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative
Antony Marlow style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative
Richard Shepherd style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative
Teddy Taylor style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative
John Wilkinson style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative
Richard Body style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative
7 October 1995 Alan Howarth style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour  
29 December 1995 Emma Nicholson style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Resigned saying "The Conservative Party has changed so much, while my principles have not changed at all. I would argue that it is not so much a case of my leaving the party, but the party leaving me."[26]
24 February 1996 Peter Thurnham style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent  Resigned over dismay at the Scott Report and the Nolan Report
13 October 1996 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat  
8 March 1997 George Gardiner style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #881111;" data-sort-value="Referendum Party" | Referendum Resigned after being deselected by local Conservative association.[27]

1997–2001 Parliament
21 November 1997 Peter Temple-Morris style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent 'One Nation Conservative' Whip removed due to questioned commitment to the Party.
21 June 1998 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent 'One Nation Conservative' style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour  
9 September 1998 Tommy Graham style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent 'Scottish Labour' Expelled from Party over misconduct.
26 March 1999 Dennis Canavan style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from Party after decision to stand for Scottish Parliament against official candidate.
18 December 1999 Shaun Woodward style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Direction of party under William Hague
6 March 2000 Ken Livingstone style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from Party after decision to stand for Mayor of London against official candidate.
11 April 2001 Charles Wardle style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip removed after rumours of support for Independent candidate in forthcoming general election.

2001–2005 Parliament
10 December 2001 Paul Marsden style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Left Labour over the war in Afghanistan[28]
2 October 2002 Andrew Hunter style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative Resigned whip in order to ally with the Democratic Unionist Party in Northern Ireland.[29]
23 June 2003 David Burnside style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #0077FF;" data-sort-value="Independent Unionist" | Independent Unionist Resigned whip over opposition to the Belfast Agreement. Accepted the whip back on 9 January 2004.
Martin Smyth style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #0077FF;" data-sort-value="Independent Unionist" | Independent Unionist Resigned whip over opposition to the Belfast Agreement. Accepted the whip back on 9 January 2004.
Jeffrey Donaldson style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #0077FF;" data-sort-value="Independent Unionist" | Independent Unionist Resigned whip over opposition to the Belfast Agreement.
23 October 2003 George Galloway style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from Party after being found guilty of "bringing the party into disrepute"[30]
9 January 2004 Jeffrey Donaldson style="width: 5px; background-color: #0077FF;" data-sort-value="Independent Unionist" | Independent Unionist style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP Joined DUP
25 January 2004 George Galloway style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #46801c;" data-sort-value="Respect Party" | Respect
25 January 2004 Ann Winterton style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip suspended over misconduct for telling a joke which alluded to the recent death of 23 illegal immigrant Chinese cockle-pickers in Morecambe Bay.[31]
31 March 2004 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Whip restored for apologising.[32]
10 December 2004 Andrew Hunter style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP  
15 January 2005 Robert Jackson style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Disagreement with party over higher education funding.
3 February 2005 Jonathan Sayeed style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip suspended until 7 March 2005 over misconduct.
7 March 2005 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative .
18 March 2005 style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip withdrawn over misconduct.
25 March 2005 Howard Flight style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip withdrawn over controversial policy remarks.
6 April 2005 Paul Marsden style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #FFBBBB;" data-sort-value="Independent Labour" | Independent Labour Declared support for Labour Party to win the impending general election.[33]
25 April 2005 Brian Sedgemore style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Unhappy with the direction Labour were heading. Although this was one week before the election, Parliament had been dissolved on 11 April and Sedgemore was no longer a sitting MP.

2005–2010 Parliament
20 October 2006 Clare Short style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whip.
Declared support for a hung parliament at the next election.[34]
26 June 2007 Quentin Davies style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Criticised the direction of the Conservative Party under leadership of David Cameron.[35]
16 September 2007 Robert Wareing style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whip after failing in a bid for reselection.
25 September 2007 Andrew Pelling style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip suspended pending the conclusion of an investigation into the accusations he assaulted his wife, a case which was then dropped by the CPS.[36]
29 January 2008 Derek Conway style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip suspended pending the conclusion of an investigation into the accusations he misused his Parliamentary Allowances.
12 March 2008 Bob Spink style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from the Conservatives after disagreements with the party.
22 April 2008 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP Joined UK Independence Party (UKIP)
November 2008 style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Re-designated Independent stating he had never been a full member.[37]
9 January 2010 Iris Robinson style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from the DUP
8 February 2010 David Chaytor style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent whip suspended over the United Kingdom Parliamentary expenses scandal after criminal charges of false accounting were brought.
Jim Devine style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Elliot Morley style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
25 March 2010 Sylvia, Lady Hermon style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from party due to opposition to the electoral pact between the Ulster Unionists and the Conservative Party.[38]

2010–2015 Parliament
19 May 2010 Eric Illsley style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip suspended over the United Kingdom Parliamentary expenses scandal after criminal charges of false accounting were brought.
14 October 2010 Denis MacShane style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip suspended over the United Kingdom Parliamentary expenses scandal[39]
23 February 2012 Eric Joyce style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip suspended after drunkenly assaulting fellow politicians, including Stuart Andrew and Phil Wilson, on the parliamentary estate[40]
5 July 2012 Denis MacShane style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Retakes the whipafter Police decide not prosecute over the United Kingdom Parliamentary expenses scandal
2 November 2012 style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip suspended after being found to have submitted false invoices for expenses during the United Kingdom Parliamentary expenses scandal[41]
4 November 2012 Nadine Dorries style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip removed after taking part in I'm a Celebrity...Get Me Out of Here![42]
4 February 2013 Chris Huhne style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from the party after pleading guilty to perverting the course of justice.
8 May 2013 Nadine Dorries style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Whip returned[43]
31 May 2013 Patrick Mercer style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned the Conservative Party whip after an ongoing enquiry regarding allegations relating to lobbying.[44]
4 June 2013 Mike Hancock style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from the Liberal Democrats after allegations of sexual offences were made against him.[45]
19 July 2013 David Ward style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip withdrawn over anti Israel remarks.[46]
10 September 2013 Nigel Evans style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from the Conservatives after allegations of sexual offences were made against him.[47][48]
19 September 2013 David Ward style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Received whip back
10 April 2014 Nigel Evans style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Found not guilty on all charges, so returned to the Conservative benches
28 August 2014 Douglas Carswell style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP Defected and resigned as MP, triggering by-election which he won.[49]
27 September 2014 Mark Reckless style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP Defected and resigned as MP, triggering by-election which he won.[50]
22 February 2015 Jack Straw style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip withdrawn after being secretly filmed apparently offering his services to a private company for cash.[51]
23 February 2015 Sir Malcolm Rifkind style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip withdrawn after being secretly filmed apparently offering his services to a private company for cash.[51]

2015–2017 Parliament
29 September 2015 Michelle Thomson style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whip over allegations of mortgage fraud.[52]
24 November 2015 Natalie McGarry style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned whip over allegations of funds going missing from the accounts of Women for Independence.[53]
28 December 2015 Simon Danczuk style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from the Labour Party following allegations of sending sexually explicit text messages to a 17-year-old girl.[54]
27 April 2016 Naz Shah style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from the Labour Party following allegations of making anti-semitic remarks.[55]
5 July 2016 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Suspension overturned and reinstated to party after apologizing for remarks made.[56]
25 March 2017 Douglas Carswell style="width: 5px; background-color: #70147A;" data-sort-value="UKIP" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Left UKIP after internal disagreements and became an independent MP[57]

2017–2019 Parliament
10 July 2017 Anne Marie Morris style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended pending investigation over racist remarks alleged[58]
25 October 2017 Jared O'Mara style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended pending investigation over sexist and homophobic comments
2 November 2017 Kelvin Hopkins style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended pending investigation due to sexual assault allegations
3 November 2017 Charlie Elphicke style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended pending investigation due to sexual assault allegations
23 November 2017 Ivan Lewis style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended pending investigation due to sexual assault allegations[59]
12 December 2017 Anne Marie Morris style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Re-admitted into the party[60]
8 January 2018 Barry McElduff style="width: 5px; background-color: #008800;" data-sort-value="Sinn Féin" | Sinn Féin style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended over a joke seen as mocking IRA victims.
30 April 2018 John Woodcock style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended pending investigation due to sexual assault allegations[61]
3 July 2018 Jared O'Mara style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Re-admitted into the party[62]
12 July 2018 style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from the Labour Party[63]
14 July 2018 Andrew Griffiths style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended following sexting controversy
24 July 2018 Ian Paisley Jr style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from party after failing to declare visits to Sri Lanka
30 August 2018 Frank Field style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from the Labour Party in protest over anti-semitism and bullying within Labour[64]
21 November 2018 Ian Paisley Jr style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP Suspension lifted and whiprestored
6 December 2018 Stephen Lloyd style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from the Liberal Democrat whip over their call for a second EU referendum
12 December 2018 Charlie Elphicke style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Whip restored to support May's Government in a vote of no confidence[65][66]
Andrew Griffiths style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
19 December 2018 Fiona Onasanya style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended, and later expelled, from the party after being convicted of perverting the course of justice[67]
18 February 2019 Luciana Berger style="width: 5px; background-color: Template:Labour and Co-operative/meta/color;" data-sort-value="Labour and Co-operative" | [[Labour and Co-operative|Template:Labour and Co-operative/meta/shortname]] style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]] Formed new group[68]
Ann Coffey style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]]
Mike Gapes style="width: 5px; background-color: Template:Labour and Co-operative/meta/color;" data-sort-value="Labour and Co-operative" | [[Labour and Co-operative|Template:Labour and Co-operative/meta/shortname]] style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]]
Chris Leslie style="width: 5px; background-color: Template:Labour and Co-operative/meta/color;" data-sort-value="Labour and Co-operative" | [[Labour and Co-operative|Template:Labour and Co-operative/meta/shortname]] style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]]
Gavin Shuker style="width: 5px; background-color: Template:Labour and Co-operative/meta/color;" data-sort-value="Labour and Co-operative" | [[Labour and Co-operative|Template:Labour and Co-operative/meta/shortname]] style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]]
Angela Smith style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]]
Chuka Umunna style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]]
19 February 2019 Joan Ryan style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]] Joined new group[69]
20 February 2019 Heidi Allen style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]] Joined new group
Anna Soubry style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]]
Sarah Wollaston style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]]
22 February 2019 Ian Austin style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from the Labour Party in protest over alleged anti-semitism and bullying within Labour[70]
27 February 2019 Chris Williamson style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from the Labour Party as he claimed that the party was too apologetic over anti-semitism
1 April 2019 Nick Boles style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned the Conservative Party whip over Brexit, taking the label "Independent Progressive Conservative"[71]
4 June 2019 Heidi Allen style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]] style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from Change UK
Luciana Berger style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]] style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Gavin Shuker style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]] style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Angela Smith style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]] style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Chuka Umunna style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]] style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Sarah Wollaston style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]] style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
13 June 2019 Chuka Umunna style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Joined the Liberal Democrats.[72]
26 June 2019 Chris Williamson style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Reinstated by party
28 June 2019 style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended again[73]
10 July 2019 Heidi Allen style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:The Independents (UK)/meta/color;" data-sort-value="The Independents (UK)" | [[The Independents (UK)|Template:The Independents (UK)/meta/shortname]] Formed new group[74]
Luciana Berger style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:The Independents (UK)/meta/color;" data-sort-value="The Independents (UK)" | [[The Independents (UK)|Template:The Independents (UK)/meta/shortname]]
Gavin Shuker style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:The Independents (UK)/meta/color;" data-sort-value="The Independents (UK)" | [[The Independents (UK)|Template:The Independents (UK)/meta/shortname]]
Angela Smith style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:The Independents (UK)/meta/color;" data-sort-value="The Independents (UK)" | [[The Independents (UK)|Template:The Independents (UK)/meta/shortname]]
John Woodcock style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:The Independents (UK)/meta/color;" data-sort-value="The Independents (UK)" | [[The Independents (UK)|Template:The Independents (UK)/meta/shortname]]
22 July 2019 Charlie Elphicke style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended once again after being charged with sexual assault[75]
14 August 2019 Sarah Wollaston style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Joined the Liberal Democrats[76]
3 September 2019 Phillip Lee style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Physically crossed the floor during a statement by prime minister Boris Johnson to join the Liberal Democrats[77]
Guto Bebb style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from the party over defying whip during vote against no-deal Brexit[78]
Richard Benyon style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Steve Brine style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Alistair Burt style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Greg Clark style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Kenneth Clarke style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
David Gauke style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Justine Greening style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Dominic Grieve style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Sam Gyimah style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Philip Hammond style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Stephen Hammond style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Richard Harrington style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Margot James style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Sir Oliver Letwin style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Anne Milton style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Caroline Nokes style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Antoinette Sandbach style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Sir Nicholas Soames style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Rory Stewart style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Ed Vaizey style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
5 September 2019 Luciana Berger style="width: 5px; background-color: Template:The Independents (UK)/meta/color;" data-sort-value="The Independents (UK)" | [[The Independents (UK)|Template:The Independents (UK)/meta/shortname]] style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat
7 September 2019 Amber Rudd style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from the Cabinet and surrendered the Conservative whip
Angela Smith style="width: 5px; background-color: Template:The Independents (UK)/meta/color;" data-sort-value="The Independents (UK)" | [[The Independents (UK)|Template:The Independents (UK)/meta/shortname]] style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Joined the Liberal Democrats.
14 September 2019 Sam Gyimah style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Joined the Liberal Democrats.
22 September 2019 Mike Hill style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from the party over allegations of sexual assault.
7 October 2019 Stephen Hepburn style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from the party over allegations of sexual assault.
7 October 2019 Heidi Allen style="width: 5px; background-color: Template:The Independents (UK)/meta/color;" data-sort-value="The Independents (UK)" | [[The Independents (UK)|Template:The Independents (UK)/meta/shortname]] style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Joined the Liberal Democrats.
16 October 2019 Louise Ellman style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from Labour in protest over Jeremy Corbyn.
21 October 2019 Mike Hill style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Reinstated after allegations of sexual harassment were dropped.
29 October 2019 Alistair Burt style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Whip restored
Caroline Nokes style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Greg Clark style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Sir Nicholas Soames style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Ed Vaizey style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Margot James style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Richard Benyon style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Steve Brine style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Stephen Hammond style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Richard Harrington style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Stephen Lloyd style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Rejoined the Liberal Democrats.
31 October 2019 Antoinette Sandbach style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Joined the Liberal Democrats.[79]

2019–2024 Parliament
13 December 2019 Neale Hanvey style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from party over anti-semitic social media posts.[80]
23 May 2020 Jonathan Edwards style="width: 5px; background-color: #008142;" data-sort-value="Plaid Cymru" | Plaid Cymru style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended after being arrested on suspicion of assault.[81]
2 June 2020 Neale Hanvey style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP Re-admitted to the party after a 6-month suspension.[82]
15 July 2020 Julian Lewis style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended after "working with Labour and other opposition MPs for his own advantage".[83]
28 September 2020 Claudia Webbe style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended and later expelled from party over allegations of harassment.[84]
1 October 2020 Margaret Ferrier style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from party after breaking COVID-19 travel restrictions.[85]
29 October 2020 Jeremy Corbyn style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from party for comments made after the release of a report that found the Labour Party under his leadership allowed anti-semitism and harassment of Jewish members.[86] Reinstated to the party on 17 November 2020 but whip not restored by Sir Keir Starmer[87]
30 December 2020 Julian Lewis style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Whip restored
27 March 2021 Kenny MacAskill style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: Template:Alba Party/meta/color;" data-sort-value="Alba Party" | [[Alba Party|Template:Alba Party/meta/shortname]] Left SNP to join the newly established Alba Party[88]
28 March 2021 Neale Hanvey style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: Template:Alba Party/meta/color;" data-sort-value="Alba Party" | [[Alba Party|Template:Alba Party/meta/shortname]] Left SNP to join the newly established Alba Party
25 May 2021 Rob Roberts style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Lost whip and suspended from Parliament for six weeks after an independent panel found he sexually harassed a member of his staff
18 June 2021 Imran Ahmad Khan style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip withdrawn after being charged with sexual assault on a 15-year old boy
12 January 2022 Anne Marie Morris Conservative Independent Whip withdrawn after rebelling against the government on an opposition day motion to cut VAT on energy bills.[89]
19 January 2022 Christian Wakeford Conservative Labour Crossed the floor after expressing no-confidence in Boris Johnson, as result of his actions following revelations over drinking and partying in Downing Street during the UK's lockdowns.[90]
11 February 2022 Neil Coyle Labour Independent Whip suspended, following allegations of making racist comments to a journalist.[91]

Members of Parliament who were suspended from their parliamentary party

These MPs were suspended by their Parliamentary Parties but continued to receive the Whip.

Date Member Party Notes
22 March 2010 Patricia Hewitt style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Suspended over the allegations from the 2010 Cash for Influence Scandal[92]
Geoff Hoon style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
Stephen Byers style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
Margaret Moran style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
5 November 2010 Phil Woolas style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Suspended after being found to have breached the Representation of the People Act 1983; his 2010 general election victory was declared void and he was barred from holding public office for 3 years;[93]
21 July 2021 Sir Roger Gale style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Suspended for trying to influence a judge regarding the case of Charlie Elphicke.[94]
Theresa Villiers style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Natalie Elphicke style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative

Members of the House of Lords who have changed party affiliation

The House of Lords is not an elective body.

Date Member Before After Notes

1700–present
1703 John Campbell, 2nd Duke of Argyll style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig Critic of the Tories.
1710 Richard Savage, 4th Earl Rivers style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory
1711 John Ashburnham, 1st Earl of Ashburnham style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig
1783 Augustus Keppel, 1st Viscount Keppel style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigning as a protest against the Peace of Paris[95]
1793 William Fitzwilliam, 4th Earl Fitzwilliam style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned over disagreements with the party over involvement in the French Revolutionary Wars[96]
William Cavendish-Bentinck, 3rd Duke of Portland style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
1794 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory
Frederick Howard, 5th Earl of Carlisle style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory
1801 Thomas Pelham, 2nd Earl of Chichester style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory
1802 Edward Law, 1st Baron Ellenborough style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory
1812 George James Cholmondeley, 4th Earl of Cholmondeley style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory
1830 Ulick de Burgh, 1st Marquess of Clanricarde style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig
1834 Francis Conyngham, 2nd Marquess Conyngham style="width: 5px; background-color: #3333CC;" data-sort-value="Tories (British political party)" | Tory style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig
Charles Gordon-Lennox, 5th Duke of Richmond style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Resigned as Postmaster General
Frederick Robinson, 1st Earl of Ripon style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Resigned as Lord Privy Seal
1846 George Hamilton-Gordon, 4th Earl of Aberdeen style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite Resigned as Foreign Secretary
Henry Pelham-Clinton, 5th Duke of Newcastle style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite Resigned as Chief Secretary for Ireland
Edward Eliot, 3rd Earl of St Germans style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite Resigned as Postmaster General of the United Kingdom
1853 Charles Canning, 1st Earl Canning style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #99FF99;" data-sort-value="Peelite" | Peelite Resigned as Commissioner of Woods and Forests
1855 Charles Somers-Cocks, 3rd Earl Somers style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #FF7F00;" data-sort-value="Whigs (British political party)" | Whig
1884 Lawrence Dundas, 1st Marquess of Zetland style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
1886 Edward Stanley, 15th Earl of Derby style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Charles Pelham, 4th Earl of Yarborough style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Spencer Cavendish, 8th Duke of Devonshire style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Francis Russell, 9th Duke of Bedford style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Chichester Parkinson-Fortescue, 1st Baron Carlingford style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Richard de Aquila Grosvenor, 1st Baron Stalbridge style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Thomas Baring, 1st Earl of Northbrook style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Edward Hyde Villiers, 5th Earl of Clarendon style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Hugh Grosvenor, 1st Duke of Westminster style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Francis Russell, 9th Duke of Bedford style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Roundell Palmer, 1st Earl of Selborne style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Albert Parker, 3rd Earl of Morley style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Richard Dawson, 1st Earl of Dartrey style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
Thomas Spring Rice, 2nd Baron Monteagle of Brandon style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
George Campbell, 8th Duke of Argyll style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned over disagreements on Irish Home Rule.[97]
1891 All Irish Conservative peers style="width: 5px; background-color: #0087DC;" data-sort-value="Irish Conservative Party" | Irish Conservative style="width: 5px; background-color: #9999FF;" data-sort-value="Irish Unionist Alliance" | Irish Unionist Conservatives in Ireland merged into new party.[3]
1895 Henry Petty-Fitzmaurice, 5th Marquess of Lansdowne style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist
1902 Spencer Cavendish, 8th Duke of Devonshire style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
1904 Ivor Guest, 1st Baron Wimborne style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal
1905 Henry Petty-Fitzmaurice, 5th Marquess of Lansdowne style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
1912 William Palmer, 2nd Earl of Selborne style="width: 5px; background-color: #2061a2;" data-sort-value="Liberal Unionist Party" | Liberal Unionist style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Conservative and Liberal Unionist parties merged.
1920 John Wodehouse, 2nd Earl of Kimberley style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
1924 Maurice Towneley-O'Hagan, 3rd Baron O'Hagan style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
1923 Richard Haldane, 1st Viscount Haldane style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
1924 Charles Cripps, 1st Baron Parmoor style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour To serve as Lord President of the Council in the First MacDonald ministry.
1945 Frederick James Marquis, 1st Earl of Woolton style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
1947 Charles Kerr, 1st Baron Teviot style="width: 5px; background-color: #AFEEEE;" data-sort-value="National Liberal Party (UK, 1931)" | Liberal National style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
1948 Oswald Phipps, 4th Marquess of Normanby style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
1950 style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent [98]
1959 David Rees Rees-Williams, 1st Baron Ogmore style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal
1975 Alan Mais, Baron Mais style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #ffd700;" data-sort-value="Liberal Party (UK)" | Liberal
1979 Alfred Robens, Baron Robens of Woldingham style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Unhappy with how left wing the Labour Party was becoming.
Alun Jones, Baron Chalfont style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Richard Marsh, Baron Marsh style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
1981 George Brown, Baron George-Brown style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Elaine Burton, Baroness Burton of Coventry style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Hugh Cudlipp, Baron Cudlipp style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
John Diamond, Baron Diamond style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Jack Donaldson, Baron Donaldson of Kingsbridge style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
John Harris, Baron Harris of Greenwich style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Derek Page, Baron Whaddon style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Walter Perry, Baron Perry of Walton style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Stephen Taylor, Baron Taylor style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Thomas Taylor, Baron Taylor of Gryfe style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Henry Walston, Baron Walston style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Henry Wilson, Baron Wilson of Langside style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Ian Winterbottom, Baron Winterbottom style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
1982 Andrew Cavendish, 11th Duke of Devonshire style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
John Edward Poynder Grigg, 2nd Baron Altrincham style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Wayland Hilton Young, 2nd Baron Kennet style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Martin Attlee, 2nd Earl Attlee style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Herbert Bowden, Baron Aylestone style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Robert Hall, Baron Roberthall style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Alan Sainsbury, Baron Sainsbury style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Hartley Shawcross, Baron Shawcross style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Phyllis Stedman, Baroness Stedman style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
George Thomson, Baron Thomson of Monifieth style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
Henry Wilson, Baron Wilson of Langside style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
1986 Bob Mellish, Baron Mellish style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic
1988 Phyllis Stedman, Baroness Stedman style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK, 1988)" | Social Democrat Opposed the SDP's merger with the Liberals
Robert Skidelsky, Baron Skidelsky style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK, 1988)" | Social Democrat
John Diamond, Baron Diamond style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK, 1988)" | Social Democrat
Elaine Burton, Baroness Burton of Coventry style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent SDP merged with Liberals
1990 Phyllis Stedman, Baroness Stedman style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK, 1988)" | Social Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Continuing SDP dissolved
John Diamond, Baron Diamond style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK, 1988)" | Social Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Robert Skidelsky, Baron Skidelsky style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK, 1988)" | Social Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
1992 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Joined Conservatives[99]
1995 John Diamond, Baron Diamond style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
1997 David Alton, Baron Alton of Liverpool style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Was unhappy with the pro-choice stance of certain colleagues
John Attlee, 3rd Earl Attlee style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Vere Harmsworth, 3rd Viscount Rothermere style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Over the parties' policies
1998 David Hacking, 3rd Baron Hacking style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Over the parties' European policies
Hugh Thomas, Baron Thomas of Swynnerton style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Over the parties' policies
Cherry Drummond, 16th Baroness Strange style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Over reduction in the number of hereditary peers[100]
1999 Timothy Beaumont, Baron Beaumont of Whitley style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #6AB023;" data-sort-value="Green Party of England and Wales" | Green Objected to the party's support of free trade
2000 Barbara Young, Baroness Young of Old Scone style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent After taking up an appointment as Chief Executive of Environment Agency[101]
Jeffrey Archer, Baron Archer of Weston-super-Mare style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled after being jailed for perjury and perverting the course of justice.
2001 Robert Skidelsky, Baron Skidelsky style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
2002 David Stoddart, Baron Stoddart of Swindon style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled for backing a Socialist Alliance candidate
2004 Edward Haughey, Baron Ballyedmond style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
May 2004 Malcolm Pearson, Baron Pearson of Rannoch style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled for backing UKIP[102]
Leopold Verney, 21st Baron Willoughby de Broke style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled for backing UKIP
David Robert Stevens, Baron Stevens of Ludgate style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Caroline Cox, Baroness Cox style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
September 2005 Christopher Haskins, Baron Haskins style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled for donating £2,500 to Liberal Democrats
November 2005 Mike Watson, Baron Watson of Invergowrie style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled after being convicted of arson[103]
January 2007 Conrad Black, Baron Black of Crossharbour style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled after being convicted of fraud[104]
David Trimble, Baron Trimble style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Joined the Conservatives "to have a greater impact on politics in the United Kingdom"[105]
Malcolm Pearson, Baron Pearson of Rannoch style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP Joined UKIP
Leopold Verney, 21st Baron Willoughby de Broke style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP Joined UKIP
March 2008 Shreela Flather, Baroness Flather style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned[106]
February 2009 Nazir Ahmed, Baron Ahmed style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled after being convicted of dangerous driving.
May 2009 Thomas Taylor, Baron Taylor of Blackburn style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended over Cash for Influence
Peter Truscott, Baron Truscott style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
June 2009 Stanley Kalms, Baron Kalms style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled for backing UKIP
February 2010 Paul White, Baron Hanningfield style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled due to Parliamentary expenses scandal
July 2010 John Taylor, Baron Taylor of Warwick style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned due to Parliamentary expenses scandal
October 2010 Pola Uddin, Baroness Uddin style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled due to Parliamentary expenses scandal
Swraj Paul, Baron Paul style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Amir Bhatia, Baron Bhatia style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
February 2011 Anthony Jacobs, Baron Jacobs style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Due to opposition to party policies on taxation.
Lucius Cary, 15th Viscount Falkland style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Due to opposition to direction of the party
February 2012 Jenny Tonge, Baroness Tonge style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party rather than apologise due to strong criticisms of Israel.[107][108]
April 2012 Nazir Ahmed, Baron Ahmed style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended for comments made about America[109]
June 2012 Nazir Ahmed, Baron Ahmed style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Suspension lifted after investigation clears Ahmed.[110]
Ken Maginnis, Baron Maginnis of Drumglass style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from the party over his anti-gay remarks[111]
July 2012 Mike Watson, Baron Watson of Invergowrie style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Re-admitted to the Labour Party.
September 2012 David Robert Stevens, Baron Stevens of Ludgate style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP Joined UKIP[112]
March 2013 Nazir Ahmed, Baron Ahmed style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended for alleged antisemitism[113]
June 2013 Brian Mackenzie, Baron Mackenzie of Framwellgate style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended after being found to have offered to lobby for a firm in return for cash
Jack Cunningham, Baron Cunningham of Felling style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
John Laird, Baron Laird style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
January 2014 Chris Rennard, Baron Rennard style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended for refusing to apologise over sexual assault claims[114]
May 2014 Matthew Oakeshott, Baron Oakeshott of Seagrove Bay style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Due to opposition to direction of the party
August 2014 Chris Rennard, Baron Rennard style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Re admitted to the Liberal Democrats
March 2015 Paul Strasburger, Baron Strasburger style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned over donor allegations[115]
Qurban Hussain, Baron Hussain style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned after illegally bringing a child into the UK from Pakistan[116]
May 2015 Barbara Young, Baroness Young of Old Scone style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Rejoined the party
Alan Sugar, Baron Sugar style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from the party over its direction[117]
July 2015 John Sewel, Baron Sewel style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from party following reports of an orgy featuring prostitutes and cocaine.[118]
September 2015 Ros Altmann, Baroness Altmann style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Expelled after it was discovered she had been a Labour member at the time she was already a Conservative minister.[119]
October 2015 Andrew Adonis, Baron Adonis style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Relinquished the Labour whip while heading a commission on major infrastructure projects.
Norman Warner, Baron Warner style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned in protest at the direction the party was heading under Jeremy Corbyn.
Anthony Grabiner, Baron Grabiner style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
September 2016 Emma Nicholson, Baroness Nicholson of Winterbourne style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Disagreed with the party's view on the European Union and grammar schools.
Zahida Manzoor, Baroness Manzoor style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Jim O'Neill, Baron O'Neill of Gatley style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned over concerns that May was not committed to the 'Northern Powerhouse'[120]
September 2016 Parry Mitchell, Baron Mitchell style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned in protest at the direction the party was heading under Jeremy Corbyn.[121]
January 2017 Alex Carlile, Baron Carlile of Berriew style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Disagreed with the party's direction.[122]
September 2018 Anthony Lester, Baron Lester of Herne Hill style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended over allegations of sexual harassment[123]
December 2018 Leopold Verney, 21st Baron Willoughby de Broke style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party
David Robert Stevens, Baron Stevens of Ludgate style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party over Gerard Batten's support and hiring of Tommy Robinson[124]
March 2019 David Steel, Baron Steel of Aikwood style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended after he stated that he was aware Cyril Smith had been a child abuser.[125]
May 2019 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Re-admitted to the party[126]
Michael Heseltine, Baron Heseltine style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended over his support for the Lib Dems during the 2019 EU election[127]
Andrew Cooper, Baron Cooper of Windrush style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended over his support for the Lib Dems during the 2019 EU election[citation needed]
Michael Cashman, Baron Cashman style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned over his support for the Lib Dems during the 2019 EU election[128]
Lewis Moonie, Baron Moonie style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from the party over allegations of transphobia.[129]
July 2019 Chris Holmes, Baron Holmes of Richmond style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended due to allegations of sexual assault[130]
July 2019 David Triesman, Baron Triesman style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned over antisemitism within the Labour Party under Jeremy Corbyn[131][132]
Leslie Turnberg, Baron Turnberg style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Ara Darzi, Baron Darzi of Denham style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
October 2019 Andrew Stone, Baron Stone of Blackheath style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from the party over allegations of sexual assault and transphobia.[133]
Malcolm Pearson, Baron Pearson of Rannoch style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party over party infighting.[citation needed]
January 2020 David Lea, Baron Lea of Crondall style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from the party over allegations of stalking women.[134]
February 2020 David Steel, Baron Steel of Aikwood style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned after a report found he did not act on allegations of child abuse by Cyril Smith.[135]
June 2020 Parry Mitchell, Baron Mitchell style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Rejoined because of Keir Starmer's handling of antisemitism within the party.[136]
David Triesman, Baron Triesman style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
Leslie Turnberg, Baron Turnberg style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour
October 2020 Chris Holmes, Baron Holmes of Richmond style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Re-admitted after being found not guilty of sexual assault.[137]
November 2020 Meghnad Desai, Baron Desai style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned over antisemitism within the Labour Party.[138]

Members of the European Parliament who have changed party affiliation

Date Member Before After Notes

1979–1984 Parliament
January 1984 Michael Gallagher style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK)" | Social Democratic Created new party

1994–1999 Parliament
June 1997 Ken Coates style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #ff0000;" data-sort-value="Scottish Socialist Party" | Scottish Socialist Expelled from the Labour Party
Hugh Kerr style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #ff0000;" data-sort-value="Scottish Socialist Party" | Scottish Socialist Expelled from the Labour Party
January 1998 James Moorhouse style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Joined the Lib Dems after being de-selected
March 1999 Brendan Donnelly style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #3333CC;" data-sort-value="Pro-Euro Conservative Party" | Pro-Euro Conservative Created new party
John Stevens style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #3333CC;" data-sort-value="Pro-Euro Conservative Party" | Pro-Euro Conservative Created new party
May 1999 Christine Oddy style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from the Labour Party[139]

1999–2004 Parliament
February 2000 Michael Holmes style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party after power struggle with UKIP's National Executive Committee[140]
July 2000 Bill Newton Dunn style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Joined the Lib Dems
August 2002 Richard Balfe style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Expelled from the Labour Party

2004–2009 Parliament
July 2004 Ashley Mote style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from UKIP after being jailed for fraud[141]
January 2005 Robert Kilroy-Silk style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #770099;" data-sort-value="Veritas (political party)" | Veritas Created new party, and then went independent.
March 2007 Tom Wise style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from UKIP (Pending fraud trial)
Jim Allister style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP style="width: 5px; background-color: #0095B6;" data-sort-value="Traditional Unionist Voice" | TUV Created new party
November 2007 Sajjad Karim style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Joined the Conservatives[142]
June 2008 Den Dover style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from the Conservatives for violating European Parliament expenses rules[143]

2009–2014 Parliament
September 2009 Edward McMillan-Scott style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from the Conservatives[144]
January 2010 Nikki Sinclaire style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from UKIP for "extreme views"[145]
March 2010 Edward McMillan-Scott style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat Joined the Lib Dems[146]
May 2011 David Campbell Bannerman style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Re-joined the Conservatives[147]
March 2012 Roger Helmer style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP Joined UKIP[148]
October 2012 Andrew Brons style="width: 5px; background-color: #00008B;" data-sort-value="British National Party" | BNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party[149]
February 2013 Marta Andreasen style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Joined the Conservatives.[150]
September 2013 Mike Nattrass style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Deselected by UKIP for the 2014 European election. He subsequently resigned from the party calling Farage's leadership "totalitarian"[151]
Godfrey Bloom style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip withdrawn due to inappropriate comments[152]

2014–2019 Parliament
January 2015 Amjad Bashir style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Joined the Conservatives.[153]
March 2015 Janice Atkinson style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended and then later expelled from UKIP due to allegations of impropriety[154]
October 2016 Steven Woolfe style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party[155]
November 2016 Diane James style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party[156]
October 2017 Richard Ashworth style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from party and whip withdrawn
Julie Girling style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from party and whip withdrawn
January 2018 Jonathan Arnott style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party, stating leader Henry Bolton "not the right person for the job"[157]
May 2018 James Carver style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party over leader Gerard Batten's support for Tommy Robinson[158]
September 2018 William Legge, 10th Earl of Dartmouth style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party, labelling it "homophobic and anti-Islamic"[159]
October 2018 Bill Etheridge style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #E2B128;" data-sort-value="Libertarian Party (UK)" | Libertarian Defected to the Libertarian Party.[160]
November 2018 Louise Bours style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party[161]
Patrick O'Flynn style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #7D26CD;" data-sort-value="Social Democratic Party (UK, 1990–present)" | Social Democratic Joined the extant SDP.[162]
December 2018 Nigel Farage style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party.[163]
Nathan Gill style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party.[164]
David Coburn style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party.[165]
Paul Nuttall style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party.[166]
Tim Aker style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: yellow;" data-sort-value="Thurrock Independents" | [[Thurrock Independents|Template:Thurrock Independents/meta/shortname]] Quit the party[166]
Julia Reid style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party.[167]
Jonathan Bullock style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party.[168]
November 2018 Diane James style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] Joined the Brexit Party
David Coburn style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]]
Nigel Farage style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]]
Nathan Gill style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]]
Julia Reid style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]]
Tim Aker style="width: 5px; background-color: yellow;" data-sort-value="Thurrock Independents" | [[Thurrock Independents|Template:Thurrock Independents/meta/shortname]] style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]]
Jonathan Bullock style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]]
Bill Etheridge style="width: 5px; background-color: #E2B128;" data-sort-value="Libertarian Party (UK)" | Libertarian style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]]
Paul Nuttall style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]]
April 2019 Jill Seymour style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] Joined the Brexit Party[169]
Jane Collins style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]]
Margot Parker style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]]
Jonathan Arnott style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]]
Julie Girling style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]] Joined new group[170]
Richard Ashworth style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]]
Ray Finch style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] Joined the Brexit Party[171]
May 2019 Julie Girling style="width: 5px; background-color: Template:Change UK/meta/color;" data-sort-value="Change UK" | [[Change UK|Template:Change UK/meta/shortname]] style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Voiced support for the Liberal Democrats in the 2019 European elections

2019–2024 Parliament
September 2019 Andrew England Kerr style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Whip withdrawn
November 2019 Louis Stedman-Bryce style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from the party
December 2019 Lucy Harris style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Joined the Conservative Party
Lance Forman style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
John Longworth style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative
Annunziata Rees-Mogg style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative

London Assembly Members who have changed party affiliation

Date Member Before After Notes

2004–2008 Assembly
September 2005 Damian Hockney style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #0095B6;" data-sort-value="One London" | One London First joined Veritas then created new party One London
Peter Hulme-Cross style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #0095B6;" data-sort-value="One London" | One London

2008–2012 Assembly
August 2010 Richard Barnbrook style="width: 5px; background-color: #00008B;" data-sort-value="British National Party" | BNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from the BNP[172]

2016–2021 Assembly
December 2018 Peter Whittle style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party[173]
January 2020 David Kurten style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the party in order to run as an Independent in the 2020 London mayoral election[174]
September 2020 David Kurten style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Heritage Party (UK)/meta/color;" data-sort-value="Heritage Party (UK)" | [[Heritage Party (UK)|Template:Heritage Party (UK)/meta/shortname]] Formed own party

Members of the Senedd who have changed party affiliation

Date Member Before After Notes

1999–2003 Assembly
2000 Rod Richards style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDEEFF;" data-sort-value="Independent Conservative" | Independent Conservative[175] Whip withdrawn after abstaining on a budget vote[176]

2003–2007 Assembly
2005 Peter Law style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Left party in protest at the use of all-woman shortlists

2007–2011 Assembly
2009 Mohammad Asghar style="width: 5px; background-color: #008142;" data-sort-value="Plaid Cymru" | Plaid Cymru style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Explained that he was a "Unionist" and against Welsh independence
2010 Mick Bates style="width: 5px; background-color: #FDBB30;" data-sort-value="Liberal Democrats (UK)" | Liberal Democrat style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended after it was discovered that he would be prosecuted for assault

2016–2021 Assembly/Parliament
2016 Nathan Gill style="width: 5px; background-color: #70147A;" data-sort-value="UKIP" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Left UKIP group to sit as an independent[177]
Dafydd Elis-Thomas style="width: 5px; background-color: #008142;" data-sort-value="Plaid Cymru" | Plaid Cymru style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Left Plaid Cymru party to support the Labour minority government.
2017 Neil McEvoy style="width: 5px; background-color: #008142;" data-sort-value="Plaid Cymru" | Plaid Cymru style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from party group[178]
Mark Reckless style="width: 5px; background-color: #70147A;" data-sort-value="UKIP" | UKIP style="width: 5px; background-color: #0087DC;" data-sort-value="Welsh Conservative Party" | Conservative Left UKIP group to sit as an independent within the Conservative Group
Carl Sargeant style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Sargeant was suspended from Welsh Labour following allegations about his personal conduct.[179]
2018 Mandy Jones style="width: 5px; background-color: #70147A;" data-sort-value="UKIP" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Left UKIP group to sit as an independent after criticising Neil Hamilton[180]
Caroline Jones style="width: 5px; background-color: #70147A;" data-sort-value="UKIP" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Left UKIP group to sit as an independent, stating the party had moved "to a more far-right position"[181]
Jenny Rathbone style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended over remarks about Jewish people.[182]
2019 Jenny Rathbone style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Re-admitted[183]
Michelle Brown style="width: 5px; background-color: #70147A;" data-sort-value="UKIP" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Left UKIP group to sit as an independent[184]
Mark Reckless style="width: 5px; background-color: #0087DC;" data-sort-value="Welsh Conservative Party" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Left Conservative Group on 'good terms' to sit as an independent[185]
Caroline Jones style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] Joined the Brexit Party[186]
Mandy Jones style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] Joined the Brexit Party[187]
Mark Reckless style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] Joined the Brexit Party
David Rowlands style="width: 5px; background-color: #70147A;" data-sort-value="UKIP" | UKIP style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] Joined the Brexit Party
Gareth Bennett style="width: 5px; background-color: #70147A;" data-sort-value="UKIP" | UKIP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit the Party[188]
2020 Nick Ramsay style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Arrested on 1 January 2020 and suspended from the Conservative group the following day.[189]
Neil McEvoy style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Welsh National Party/meta/color;" data-sort-value="Welsh National Party" | [[Welsh National Party|Template:Welsh National Party/meta/shortname]] Formed the Welsh National Party
Gareth Bennett style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #000000;" data-sort-value="Abolish the Welsh Assembly Party" | Abolish the Welsh Assembly Party Joined the Abolish the Welsh Assembly Party[190]
Nick Ramsay style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative Re-admitted[191]
Caroline Jones style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Left the Brexit Party due to their anti-devolution stance[192]
Caroline Jones style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Formed a new group: Independent Alliance for Reform[193]
Mandy Jones style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
David Rowlands style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent
Mark Reckless style="width: 5px; background-color: Template:Brexit Party/meta/color;" data-sort-value="Brexit Party" | [[Brexit Party|Template:Brexit Party/meta/shortname]] style="width: 5px; background-color: #000000;" data-sort-value="Abolish the Welsh Assembly Party" | Abolish the Welsh Assembly Party Joined the Abolish the Welsh Assembly Party[194]
2021 Alun Davies style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended after allegedly being involved in alcohol drinking on the Senedd estate, that could have broken COVID restrictions.[195]
style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour Re-admitted[196]
Nick Ramsay style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Left the Conservative Group after being unhappy with the party's direction, and wanting to stand as an Independent in the Senedd election, after being deselected by the local group.[197]

2021–2026 Assembly/Parliament

Members of the Scottish Parliament who have changed party affiliation

Date Member Before After Notes

1999–2003 Parliament
2002 Dorothy-Grace Elder style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned over disagreement over how the party was run[198]
2003 Margo MacDonald style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Ranked low on the party list for re-election so stood as an independent and was expelled from party; re-elected as an independent

2003–2007 Parliament
2004 Campbell Martin style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from party and stood as an independent
2005 Mike Watson, Baron Watson of Invergowrie style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from the Party after causing a fire and resigned[199]
Brian Monteith style="width: 5px; background-color: #0087DC;" data-sort-value="Conservative Party (UK)" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Had whip withdrawn over misconduct
2006 Rosemary Byrne style="width: 5px; background-color: #ff0000;" data-sort-value="Scottish Socialist Party" | Scottish Socialist style="width: 5px; background-color: #a22f32;" data-sort-value="Solidarity (Scotland)" | Solidarity Created new Party Solidarity
Tommy Sheridan style="width: 5px; background-color: #ff0000;" data-sort-value="Scottish Socialist Party" | Scottish Socialist style="width: 5px; background-color: #a22f32;" data-sort-value="Solidarity (Scotland)" | Solidarity Created new Party Solidarity

2007–2011 Parliament
March 2011 Hugh O'Donnell style="width: 5px; background-color: #fdbb30;" data-sort-value="Scottish Liberal Democrats" | Liberal Democrats style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit party over its direction[200]

2011–2016 Parliament
April 2012 Bill Walker style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Expelled from the SNP for allegedly not declaring the allegations cited in his uncontested divorce proceedings during the MSP vetting process.[201]
October 2012 John Finnie style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned over the party's decision to support NATO membership for an independent Scotland[202]
Jean Urquhart style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned over the party's decision to support NATO membership for an independent Scotland[202]
September 2014 John Wilson style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned over the party's decision to support NATO membership for an independent Scotland[202]
October 2014 John Finnie style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #6AB023;" data-sort-value="Scottish Green Party" | Scottish Green Joined the Scottish Green Party, but continued to sit as an Independent MSP[203]
December 2014 John Wilson style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #6AB023;" data-sort-value="Scottish Green Party" | Scottish Green Joined the Scottish Green Party, but continued to sit as an independent MSP[204]
September 2015 Jean Urquhart style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #f15723;" data-sort-value="RISE – Scotland's Left Alliance" | RISE Joined the RISE, but continued to sit as an independent MSP[205]

2016–2021 Parliament
12 May 2016 Ken Macintosh style="width: 5px; background-color: #DC241F;" data-sort-value="Scottish Labour Party" | Labour style="width: 5px; background-color: #000000;" data-sort-value="Presiding Officer of the Scottish Parliament" | Presiding Officer Elected Presiding Officer and consequently had to renounce his party affiliation.[206][207]
15 November 2017 Alex Rowley style="width: 5px; background-color: #DC241F;" data-sort-value="Scottish Labour Party" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended by Labour due to allegations about his conduct.[208]
16 November 2017 Mark McDonald style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended by SNP due to allegations about his conduct. Left the SNP on 6 March 2018.[209]
19 December 2017 Alex Rowley style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #DC241F;" data-sort-value="Scottish Labour Party" | Labour Reinstated by Labour[210]
February 2020 Derek Mackay style="width: 5px; background-color: #FFFF00;" data-sort-value="Scottish National Party" | SNP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended by SNP for sending inappropriate messages to a 16-year-old boy[211]
24 November 2020 Michelle Ballantyne style="width: 5px; background-color: #0087DC;" data-sort-value="Scottish Conservative Party" | Conservative style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Left the Conservative Party due to disagreements over policy relating to the Covid-19 pandemic.[212]
18 December 2020 Andy Wightman style="width: 5px; background-color: #6AB023;" data-sort-value="Scottish Green Party" | Scottish Green style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned over policy differences[213]
12 January 2021 Michelle Ballantyne style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: Template:Reform UK/meta/color;" data-sort-value="Reform UK" | [[Reform UK|Template:Reform UK/meta/shortname]] Became Scots chief of what is now Reform UK[214] after the name change from Brexit Party

2021–2026 Parliament
13 May 2021 Alison Johnstone style="width: 5px; background-color: #6AB023;" data-sort-value="Scottish Green Party" | Scottish Green style="width: 5px; background-color: #000000;" data-sort-value="Presiding Officer of the Scottish Parliament" | Presiding Officer Elected Presiding Officer.[215]

Members of the Northern Ireland Assembly who have changed party affiliation

Date Member Before After Notes

1998–2003 Assembly
1999 Cedric Wilson style="width: 5px; background-color: #660066;" data-sort-value="UK Unionist Party" | UK Unionist style="width: 5px; background-color: darkorange;" data-sort-value="Northern Ireland Unionist Party" | NI Unionist Disagreed with UKUP leader Robert McCartney, as they wanted to remain in the Assembly to challenge unionists in favour of the Belfast Agreement
Patrick Roche style="width: 5px; background-color: #660066;" data-sort-value="UK Unionist Party" | UK Unionist style="width: 5px; background-color: darkorange;" data-sort-value="Northern Ireland Unionist Party" | NI Unionist Disagreed with UKUP leader Robert McCartney, as they wanted to remain in the Assembly to challenge unionists in favour of the Belfast Agreement
Norman Boyd style="width: 5px; background-color: #660066;" data-sort-value="UK Unionist Party" | UK Unionist style="width: 5px; background-color: darkorange;" data-sort-value="Northern Ireland Unionist Party" | NI Unionist Disagreed with UKUP leader Robert McCartney, as they wanted to remain in the Assembly to challenge unionists in favour of the Belfast Agreement
Roger Hutchinson style="width: 5px; background-color: #660066;" data-sort-value="UK Unionist Party" | UK Unionist style="width: 5px; background-color: darkorange;" data-sort-value="Northern Ireland Unionist Party" | NI Unionist Disagreed with UKUP leader Robert McCartney, as they wanted to remain in the Assembly to challenge unionists in favour of the Belfast Agreement
style="width: 5px; background-color: darkorange;" data-sort-value="Northern Ireland Unionist Party" | NI Unionist style="width: 5px; background-color: #0077FF;" data-sort-value="Independent Unionist" | Independent Unionist Expelled for accepting seats on two statutory committees, against party policy.[216]
November

2000

 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP Joined DUP[217]

2003–2007 Assembly
18 December 2003 Jeffrey Donaldson style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP Disagreements over the Good Friday Agreement negotiations and the position taken by party leader David Trimble[218]
Norah Beare style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP
Arlene Foster style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP
23 November 2005 Francie Molloy style="width: 5px; background-color: #008800;" data-sort-value="Sinn Féin" | Sinn Féin style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from the party due to publicly disagreeing with the policy on local government reform.[219]
15 January 2007 Geraldine Dougan style="width: 5px; background-color: #008800;" data-sort-value="Sinn Féin" | Sinn Féin style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from party[220]
2 February 2007 Davy Hyland style="width: 5px; background-color: #008800;" data-sort-value="Sinn Féin" | Sinn Féin style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from party[220]
15 February 2007 Paul Berry style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Stood as an independent but was not elected[221]
18 February 2007 George Ennis style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP style="width: 5px; background-color: #660066;" data-sort-value="UK Unionist Party" | UK Unionist

2007–2011 Assembly
29 November 2007 Gerry McHugh style="width: 5px; background-color: #008800;" data-sort-value="Sinn Féin" | Sinn Féin style="width: 5px; background-color: #66BB66;" data-sort-value="Fianna Fáil" | Fianna Fáil Believed that "Fianna Fáil was the right party to bring about change in Northern Ireland".
30 March 2010 Major Alan MacFarland style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Disagreed with the UUP's electoral pact with the Conservative Party
3 June 2010 Dawn Purvis style="width: 5px; background-color: #999999;" data-sort-value="Progressive Unionist Party" | PUP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Disagreed with direction of party[222]
3 January 2011 David McClarty style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned after being de-selected[223]

2011–2016 Assembly
27 January 2012 David McNarry style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from the UUP.[224]
4 October 2012 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent style="width: 5px; background-color: #70147A;" data-sort-value="UK Independence Party" | UKIP Joined UKIP.[224]
14 February 2013 Basil McCrea style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #008080;" data-sort-value="NI21" | NI21 Formed new party[225]
John McCallister style="width: 5px; background-color: #9999FF;" data-sort-value="Ulster Unionist Party" | UUP style="width: 5px; background-color: #008080;" data-sort-value="NI21" | NI21 Formed new party[226]
10 July 2014 style="width: 5px; background-color: #008080;" data-sort-value="NI21" | NI21 style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Response to allegations of impropriety against leader Basil McCrea[227]

2016–2017 Assembly
18 December 2016 Jonathan Bell style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from the DUP following fallout with party leader[228]

2017–2022 Assembly
18 May 2018 Jim Wells style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspending after attacking the leadership[229]
3 March 2020 Trevor Lunn style="width: 5px; background-color: #F6CB2F;" data-sort-value="Alliance Party of Northern Ireland" | Alliance style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Quit Alliance due to an 'irreconcilable internal problem'[230]
1 July 2021 Alex Easton style="width: 5px; background-color: #D46A4C;" data-sort-value="Democratic Unionist Party" | DUP style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from the party[231]

Police and crime commissioners (PCCs) who have changed party affiliation

Date Member Before After Notes

2012–2016 Commissioners
2014 Olly Martins style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Suspended from the Labour Party and investigated by the Independent Police Complaints Commission after he disclosed confidential information about the death of a man in police custody.[232][233][234]

2016–2021 Commissioners
April 2019 Jane Kennedy style="width: 5px; background-color: #DC241f;" data-sort-value="Labour Party (UK)" | Labour style="width: 5px; background-color: #DDDDDD;" data-sort-value="Independent politician" | Independent Resigned from the Labour Party alleging anti-semitism.[235]

References

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Bibliography

  • David Butler and Gareth Butler, Twentieth Century British Political Facts (Palgrave Macmillan, 2005)
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