Derbforgaill Na Ossory 
Derbforgaill Na was born about 1000 in Ireland. She died about 1058 in Glendaloch.
They had a son named Muirchtach.
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Children
Muirchtach MacToiredlback
Muirchtach was born about 1030 in Munster, Ireland. He died in 1119 in Lismore, Waterford, Ireland.
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