Brian Sreamhach Ua Briain (died 1400), also known as Briain Catha-an-Aonaigh Ó Briain, and Brian Ó Briain, was

King of Thomond The kings of Thomond () ruled from the establishment of Thomond during the High Middle Ages, until the Early modern period. Thomond represented the legacy of Brian Bóruma and the High Kings of Ireland of his line who could not hold onto all of ...

from 1369 to 1400. He was the son of Mathghamhain Maonmhaighe Ó Briain. In about 1370 or 1371, he defeated and captured Gerald FitzGerald, 3rd Earl of Desmond near

Limerick Limerick ( ; ) is a city in western Ireland, in County Limerick. It is in the Provinces of Ireland, province of Munster and is in the Mid-West Region, Ireland, Mid-West which comprises part of the Southern Region, Ireland, Southern Region. W ...

. On his death in 1400 he was succeeded by his brother Conchobhar, who was succeeded on his death in 1426 by Brian's son Tadhg na Glaoidh Mór.

Family

He married firstly Sláine, daughter of Lochlann Láidir Mac Conmara and had issue: Tadhg na Glaoidh Mór, Mathgamain Dall, and Toirdhealbhach Bóg. He married secondly Margaret Fitzgerald, daughter of James Fitzgerald of Desmond and had issue: Brian Udhar Catha. John O'Hart,"Irish Pedigrees or the Origin and Stem of the Irish Nation", Volume 1, 1892, page 160, https://archive.org/stream/irishpedigreesor_01ohar#page/160

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Brian Brian (sometimes spelled Bryan (given name), Bryan in English) is a male given name of Irish language, Irish and Breton language, Breton origin, as well as a surname of Occitan language, Occitan origin. It is common in the English-speaking world. ...

1400 deaths 14th-century Irish monarchs Kings of Thomond People from County Clare Year of birth unknown {{Ireland-royal-stub