| | MauriceIII deBerkeley 1271–1326 | | |
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| | Geoffrey Viscompte de Porhoet …–1141 | | | | AlainIV Fergant Duke of Brittany …–1119 Ermengarde of Anjou …–1147 | | | | Hoel Duke of Brittany …–1084 Havoise of Brittany …–1072 | | | | Alain Caignhart Count of Cornouaille …–1058 | | | | Benoit Count and Bishop of Cornouaille …–… Guinodeon of Prorhoet …–… | | |
| | | Judicael Count of Nantes 970–1037 | | |
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| | | AlainIII Duke of Brittany …–1040 | | | | GeoffreyI Duke of Brittany …–1008 Hawise of Normandy …–1033 | | |
| | | EudesII Count of Blois & Champagne 990–1037 Ermengarde of Auvergne 995–1039 | | |
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| | | FulkIV Rechin Count of Anjou 1043–1109 Bertrade deMontfort 1059–1116 | | | | GeoffreyIV Count of Gatinais …–1046 Ermengarde of Anjou 1018–1075 | | | | GeoffreyIII Count of Gastinois …–1000 | | |
| | | FulkIII Nerra Count of Anjou 970–1040 | | |
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| | | SimonI Seigneur deMontfort …–1087 | | | | AmauryII deMontfort 993–AD 1030/31 | | |
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