A member of a high-class ecclesiastical family in what is now
County Donegal, "genealogical sources give his father as Máel Brigte and his three brothers as Áed, Diarmait, and Muirecan." Besides holding a number of benefices and wielding considerable political influence, he was the author of the poem
To an Elderly Virgin. He died as a member of the religious community of
Armagh in 1086, recorded as being
the chief sage of Ireland. Members of his lineage served as
Bishop of Derry. ==Works==