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Muircheartach Ua Briain (anglicised as Murtaugh O'Brien; c. 1050 – c. 10 March 1119), son of Toirdelbach Ua Briain and great-grandson of Brian Boru, was King of Munster and later self-declared High King of Ireland.
Ua Briain, Muirchertach (c.1050–1119) was a son of Tairdelbach ua Briain (qv) (d. 1086) and a great-grandson of Brian Bórama (qv). His mother was Derbfhorgaill, daughter of Tadc Mac Gilla-Phátraic, king of Osraige. Among his wives were Derbfhorgaill, daughter of Lethlobar grandson of Laidcnén.
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Apr 27, 2022 · Muirchertach Ua Briain (c. 1050 – c. 10 March 1119), son of Toirdelbach Ua Briain and great-grandson of Brian Bóru, was King of Munster and later self declared High King of Ireland. Background.
- Munster
- circa 1050
- "King of Munster"
- Munster, Ireland
When Muirchertach Ua Briain King of Ireland and Munster was born about 1050, in Munster, Ireland, his father, Toirdhealbach Ua Briain High King of Ireland, was 42 and his mother, Derbforgaill ingen Tadhg Mac Giolla Pádraig, was 40. He had at least 1 daughter with Cailleach Chrion O'Cuilen.
Muircheartach Ua Briain (anglicised as Murtaugh O'Brien; c. 1050 – c. 10 March 1119), son of Toirdelbach Ua Briain and great-grandson of Brian Boru, was King of Munster and later self-declared High King of Ireland
The Munstermen were in Mide again in 1084 when they were attacked by Donnchad Ua Ruairc who was defeated by Tairdelbach's son, Muirchertach, in the battle of Móin Cruinneóige, the enemy's head being brought back to Limerick in triumph.
Brian's descendants, the Ua Briain provided a further three High Kings of Ireland and exercised supremacy in Munster until Tairrdelbach Ua Conchobair, taking advantage of war between brothers Diarmait and former High-King Muircheartach, invaded Munster and split it in two in the Treaty of Glanmire (1118) granting Thomond to the sons of Diarmait ...
