| | Milicent deBerkeley …–1322 JohnVII Lord Mautravers 1290–1363 | | |
| | MauriceIII deBerkeley 1271–1326 | | |
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| | Alan LaZouche Lord 1267–1314 | | |
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| | | | | | | | | | | William leMeschines 1096–… | | | | RanulphIII leMeschines Earl of Chester 1070–1128 Lucy Taillebois 1070–1128 | | | | Randulf Earl of Chester deBrichessart 1050–1129 Maud deAvranches 1053–1084 | | |
| | | Ivo FitzRichard deRoumare Taillebois 1036–1094 | | |
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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 | | |
| | | AlainIII Duke of Brittany …–1040 | | |
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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 | | |
| | | SimonI Seigneur deMontfort …–1087 | | |
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