Category:10th-century Irish monarchs

10th century Ireland consisted of as few as five and as many as nine main kingdoms, subdivided into dozens of smaller kingdoms. The primary kingdoms were Connacht, Ailech, Airgíalla, Ulster, Mide, Leinster, Osraige, Munster and Thomond. Until the end of Gaelic Ireland they continued to fluctuate, expand and contract in size, as well as dissolving entirely or being amalgamated into new entities. The role of High King of Ireland was primarily titular and rarely (if ever) absolute. Gaelic Ireland was not ruled as a unitary state.