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Female Sibella De Mitford Click to view Sibella De Mitford in the family tree

Sibella De was born about 1048 in Mitford Castle, Morpeth, Northumberland, England.  Sibella De's father was John De Mitford and her mother was Mrs John De Mitford.  She was an only child.


Sibella De's family with Richard Bertram

They had a son named William I.

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