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Female Sibilla de MITFORD Click to view Sibilla de MITFORD in the family tree

Sibilla de was born about 1048 in Mitford Castle, Morpeth, Northumberland, England.  Sibilla de's father was John de MITFORD.  She was an only child.  Sibilla de is no longer alive.


Sibilla de's family with Richard de BERTRAM

They had a son named William I.