John (Sir) de MITFORD 
He had a biological daughter named Sibella de.
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Personal Details
John (Sir) de MITFORD
John (Sir) de was born about 1026 in Mitford Castle, Northumberland, France. John (Sir) de is no longer alive.
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Children
Sibella de MITFORD
Sibella de was born about 1045 in Mitford Castle, Morpeth, Northu,berland, England. Sibella de is no longer alive.