The St. John Genealogy Project
Origin and Ancestry DNA Database & Electronic Archive
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 | Alice de Lucy, de Umfraville (1120-1218)
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 | William I de Umfreville (1140- ) |
| Agnes de Umfreville, m. Robert de Insula (1144-1200) |
| William II Bertram, of Mitford (1150-1200) |
| William III Bertram (1170- ) |
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