Donnchadh Cairbreach Ó Briain


Donnchadh Cairbreach Ó Briain was King of Thomond from 1198 to his death in 1242.

Reign

He was one of the three sons of Domnall Mór Ua Briain. His father died in 1198 and his brother Muircheartach Dall was blinded by the Normans, his other brother Conchobhar Ruadh was killed in 1198 and Donnchadh began his reign. The MacConmara and Ó Cuinn clans revolted against him and he defeated the revolt with the help of his brother-in-law de Burgh and other Normans. In return he granted Limerick and lands in Tipperary and County Limerick to the Normans, reducing Thomond to the area of the modern-day County Clare, protected from further incursions by the River Shannon.

Family [John O'Hart],"Irish Pedigrees or the Origin and Stem of the Irish Nation", Volume 1, 1892, page 158, https://archive.org/stream/irishpedigreesor_01ohar#page/158/mode/2up

He married Sadhbh Ua Cinnéidigh and had six known children: