Lafracoth O'Brien 
Lafracoth was born in 1087 in Thormond, Ireland. Lafracoth's father was Murnough Murcertach O'Brien and her mother was Dubhehabhlaigh of Ossory. Her paternal grandparents were Tadhg O'Brien King Of Munster and Dirborgaill ingen Taidg of Ossory; her maternal grandfather was dermont of Ossory. She was an only child.General Notes
The O'Brien and the MacCarthy families had been warring with each otherin southwestern Ireland for many years prior to the Norman invasion ofIreland. Iafracoth or Lafeacott was apparently a persuasive woman. Whenher son-in-law, Maurice fitzGerald, invaded Ireland in 1171, he took byconquest part of the MacCarthy territory. Initially at least, Maurice didnot seize any O'Brien territory.
Most people named O'Brien are descended from Brian mac Cennéidigh, theArd-Righ (High King) of Ireland usually known as Brian Bóru. SinceLafeacott O'Brien was born only about 150 years after the army of BrianBóru defeated the Vikings at Clontarf in A.D. 1014, she was undoubtedlyaware of her famous ancestor and careful about the spelling of her name.In later generations, the families of (O) Byrne, O'Broin, and Bryansometimes changed the spelling of their name to O'Brien.
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Ancestor Pedigree Chart
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*There are earlier generations for the ancestor(s) indicated. See their page(s) for details (click name)
- b.0870 d.UNKNOWN
- b.0910 d.0951
- b.0945 d.1014
- b.0900 d.UNKNOWN
- b.0925 d.1005
- b.1009 in Munster, Ireland d.1086
- b.0940 d.UNKNOWN
- b.0970 d.1030
- b.0950 d.UNKNOWN
- b.1032 in Munster, Ireland d.1119
- b.0922 d.0976
- b.0952 d.0996
- b.0922 d.1016
- b.0982 in Ossory, Ireland d.1027
- b.1012 in Ossory, Ireland d.1098 in Glendaloch
- b.1087 in Thormond, Ireland d.UNKNOWN
- b.0922 d.0976
- b.0952 d.0996
- b.0922 d.1016
- b.0982 in Ossory, Ireland d.1027
- b.1020 in Ossory, Ireland d.1065
- b.1052 in Ossory, Ireland d.1098
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They had a son named Philip.
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