| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Henry I DeDurbury b. 1002 in Namur, Namur, Belgium d. 1080 in Tutbury, Staffordshire, England |
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| | | | | | | | | | | | | | | | | | | | | Henry DeFerrers b. 28-May-1036 in Ferrières, Pyrenees-Atlantiques, Aquitaine, France d. 21-Nov-1088 in Ferrieres, Gastenois, Normandy, France |
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| | | | | | | | | | | | | | | | | | | | | Bertha Tutbury b. 1001 in Tutbury Castle, Derbyshire, England d. 1078 in Tutbury, Staffordshire, England |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Walchelin De Ferrers b. 1010 in Ferrières, Eure, Haute-Normandie, France d. 1089 in Basse-Normandie, France |
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| | | | | | | | | | | | | | | | | | | | | Bertha Roberts b. 04-May-1044 in Aigle, Orne, Normandy, France d. 30-Jul-1095 in Pas-de-Calais, Nord-Pas-de-Calais, France |
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| | | | | | | | | | | | Henry DeFerriers in Ferrie, Gastenois, Normandy, France d. 1015 in Ferrières, Eure, Haute-Normandie, France |
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| | | | | | | | | Mahaut De Durbury b. 1018 in Tutbury Castle, Derbyshire, England d. 1091 in Tutbury Castle, Derbyshire, England |
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| | | | | | | | | | | | Bertha Roberts b. 04-May-1044 in Aigle, Orne, Basse-Normandie, France d. 1072 in Darley Dale, Derbyshire, England |
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