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Male William De Mortainge Earl Of Cornwall Click to view William De Mortainge Earl Of Cornwall in the family tree

William De Mortainge Earl Of was born in 1068 in Cornwall, England.1   William De Mortainge Earl Of's father was Robert Count De Mortaigne Earl Of Cornwall and his mother was Matilda De Montgomery.  His paternal grandparents were Herluin de Conteville Viscount Conteville and Harlette De Falaise; his maternal grandparents were Roger De Montgomery and Mabel De Belleme Talvas. He had two sisters named Agnes and Emma.  He was the youngest of the three children.  He died at the age of 72 in 1140.1 


William De Mortainge Earl Of's first family with Isabel Fitz Richard De Clare

They had a daughter named Beatrice.


William De Mortainge Earl Of's second family

He had a biological son named Aldhelm De.

1 Joanne's Tree.1 GED.GED
Further source/citation:
daveanthes.FTW

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