| | JohnVIII Mautravers …–1348 | | |
| | Milicent deBerkeley …–1322 JohnVII Lord Mautravers 1290–1363 | | |
| | MauriceIII deBerkeley 1271–1326 | | |
| | | | | | | | | | | | | | Geoffrey Viscompte de Porhoet …–1141 | | | | | AlainIV Fergant Duke of Brittany …–1119 Ermengarde of Anjou …–1147 | | |
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| | | | | | | | William leMeschines 1096–… | | |
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| | | Aubrey FitzRichard …–1213 | | | | | Richard FitzEustace …–1163 Albreda deLisoures 1128–1194 | | |
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