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Male Muirchertach II O'Brien Click to view Muirchertach II O'Brien in the family tree

Muirchertach II was born about 1050 in Munster, Ireland.  Muirchertach II's father was Toirrdelbach O'Brien and his mother was Dearbforgail of Ossory.  His paternal grandparents were Teige Terence O'Brien and More O'Mulloy; his maternal grandfather was Tadhg of Ossory. He had a half-sister named Dearbforgail of.  He died in 1119.


Muirchertach II's family

He had a biological daughter named Lafracoth.

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