Domnall Mór Ua Briain
Domnall Mór Ua Briain (died 1194), third son of Toirdhealbhach mac Diarmada, became King of Thomond in 1168 after his brother's death. He submitted to Henry II of England in 1171 but kept fighting the Norman invaders of Ireland, crushing a Cambro-Norman army at Thurles in 1175 and retaking Limerick in 1176. In 1185 he defeated Prince John's forces.
He founded Holy Cross Abbey and Kilcooly Abbey, both Cistercian, and died in 1194, regarded as the last king of Munster.