The Burke/de Burgh Civil War was a conflict in Ireland in the 1330s between three leading members of the de Burgh (Burke/Bourke) family.
William Donn de Burgh, 3rd Earl of Ulster, was murdered by his household knights in June 1333. His only child, Elizabeth de Burgh (1332–1363), succeeded as Countess of Ulster and legal heir to the de Burgh estate as an infant. But because she was an infant, and a female, she was taken by her mother to England for safety.
Meanwhile, three members of the de Burgh family fought against each other in an attempt to preserve their own personal estates, and overall control of the massive de Burgh inheritance in Ireland. They were:
Sir Edmond de Burgh of Castleconnell, only surviving uncle of the Brown Earl and senior member of the de Burgh dynasty.
Sir Edmond Albanach de Burgh of north Connacht, a cousin of the Brown Earl and Sir Edmond of Castleconnell.
Sir Uilleag de Burgh of south Connacht, chief of an illegitimate branch of the de Burghs.
Loss and divisions
The eventual outcome of the war was the loss of almost all the de Burgh lands in Ulster, which was reconquored within a year by the Gaelic-Irish.
The remaining de Burghs in Ireland fragmented into three distinct clans, all of which had several sub-septs. They were:
Clan William Bourke of County Limerick
Mac William Íochtar of County Mayo
Mac William Uachtar/Clanricarde Burke of County Galway
Walter de Burgh
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William de Burgh, died 1205. Hubert de Burgh, 1st Earl of Kent, d. 1243.
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Richard Mór de Burgh, 1st Baron of Connaught Hubert de Burgh, Bishop of Limerick, d. 1250. Richard Óge de Burgh
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Walter de Burgh, 1st Earl of Ulster William Óg de Burgh
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Richard Óg de Burgh, 2nd Earl of Ulster Edmond Albanach de Burgh
| (Mac William Íochtar)
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John de Burgh Edmond de Burgh, 1298-1338.
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William Donn de Burgh, 3rd Earl of Ulster
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Elizabeth de Burgh, 4th Countess of Ulster
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Philippa, 5th Countess of Ulster
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Roger Mortimer, 4th Earl of March
