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Birth:          ABT 1142 Clare, Munster, Ireland
Death:          1194 

Notes
https://en.wikipedia.org/wiki/Margery_de_Burgh
https://en.wikipedia.org/wiki/Domnall_M%C3%B3r_Ua_Briain
Domnall Mór Ua Briain, or Domnall Mór mac Toirrdelbaig Uí Briain, was King of 
Thomond in Ireland from 1168 to 1194 and a claimant to the title King of Munster. He 
was also styled King of Limerick, a title belonging to the O'Brien dynasty since Brian 
Boru's annexation of the Norse city in the 10th century.
History[edit]

Domnall Mór ("Donall the Great"), a great-great-great grandson of Brian Boru, was the 
third son of King Tairdelbhach of Munster, who reigned 1142 to 1167. He ascended to 
the throne in 1168 after the death of his eldest brother, Muirchertach, who had 
succeeded their father as king. Muirchertach was killed at the instigation of his cousin 
Conchobar mac Muirchertach Ua Briain. His other brother Brian of Slieve Bloom was 
blinded in 1169. The same year, Domnall entered into conflict with the High King of 
Ireland, Ruaidrí Ua Conchobair and was forced to pay him a tribute of 300 cows.

In 1171, he submitted to King Henry II of England at Cashel, but he continued to fight 
successfully against the Norman incursion into south-west Ireland for many years. In 
1175, having demolished the Cambro-Normans at the Battle of Thurles, he 
consolidated his power by blinding two of his cousins, Dermot mac Taig Ua Briain and 
Mathgamain mac Toirdhelbeach Ua Briain, in Limerick. He was, however, driven from 
Thomond by Ua Conchobair, the High King, the same year. In 1176, he drove the 
Normans from Limerick and in 1178 finally drove out the Uí Fidgenti (AI), the ancient 
rulers of the modern County Limerick region.


 


The Cathedral of Saint Mary Blessed Virgin, Limerick, founded by Donall O'Brien and 
also where he is buried.
In 1184, part of his lands were enfeoffed to Philip de Braose, Lord Deputy of Ireland. 
Supported by Robert Fitz-Stephen and Miles de Cogan, the Lord Deputy set out to 
take possession of Limerick, but on approaching the city, turned back in a panic. In 
1185 when Prince John of England intervened in Ireland, Domnall Mór demolished the 
Normans again when John was plundering along the valley of the River Suir. The 
same year he also blinded the last Dermot brother. In 1188, he helped the men of 
Connacht under Conchobar Maenmaige Ua Conchobhair to overcome Jean de Courcy 
in the Curlew Mountains. In 1193, the Normans devastated Clare in reprisal and 
plundered Domnall's possessions in Ossory.

He established Holy Cross Abbey in 1180 and Kilcooly Abbey in 1184, both under the 
Cistercian order.[1]

According to the Annals of Ulster, he was the last king of Munster, dying in 1194. He 
is buried in the apse of St. Mary's Cathedral, Limerick, a church he first organised. His 
tomb is covered with a carved sepulchre stone near the church's main altar.

Family[edit]

Domnall Mor married Orlacan, daughter of Diarmait Mac Murchada and Mór Ní 
Tuathail. He left several sons who fought amongst themselves and with their cousin 
Muichertach, son of Brian of Slieve Bloom, for the succession in Thomond.
Muirchertach Finn (King of Thomond, 1194-1198, restored 1202 or 1203-1208 or 1210, 
blinded 1208 or 1210, died 1239)
Conchobar Ruadh (King of Thomond, 1198-1202 or 1203, killed 1202 or 1203)
Donnchadh Cairprech (King of Thomond, 1208 or 1210–1242)
an unknown daughter, who married Richard Mór de Burgh, 1st Baron of Connaught
http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=jweber&id=I13937

Parents
UA BRIAIN Toirrdelbach (ABT 1110 - BEF 7 Nov 1167)
MAC GILLAPATRICK Sadb (ABT 1127 - )

Siblings
UA BRIAIN Domnall Mor (ABT 1142 - 1194)

Marriage To MCMURROUGH Urlachen (Orlacan) (ABT 1154 - )
    m.  

Notes

Parents
MCMURROUGH Dermot (ABT 1100 - 1 May 1171)
O'MOORE Cacht (ABT 1135 - )

Children by MCMURROUGH Urlachen (Orlacan) ABT 1154 - 
O'BRIEN More (ABT 1178 - )

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