Irish America

Irish America

O'Brien

Roots: The O’Briens

By James G. Ryan

January/February 1996

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The O'Briens are one of the great Gaelic families of Ireland, and were the rulers of the ancient kingdom of Thomond, which takes in much of the modern county Clare and also the adjacent parts of counties Limerick and Tipperary. The family name is derived from Brian Boru (925-1014 A.D.) who was King of Thomond and rose to become High King of Ireland. Brian Boru is best … [Read more...] about Roots: The O’Briens

Roots: O’Brien

By Liam Moriarty, Contributor
February / March 2007

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The O’Briens are an illustrious and prominent clan that has shaped the history of Ireland. The name, also spelt O’Bryan or O’Brian, means “of Brian” indicating descendance from Brian Borumha mac Cennetig, or Brian Boru, the celebrated High King of Ireland. (The O’Briens also claim the mythological King Oilill Ollum to be their ancestor through the Dal gCais). Brian Boru … [Read more...] about Roots: O’Brien