| | JohnII Fitzalan 1365–1391 Elizabeth leDespencer …–… | | |
| | William Arundel Fitzalan 1369–1470 | | |
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| | JohnVIII Mautravers …–1348 | | |
| | Milicent deBerkeley …–1322 JohnVII Lord Mautravers 1290–1363 | | |
| | MauriceIII deBerkeley 1271–1326 | | | | | | | | | | | | | | | | Geoffrey Viscompte de Porhoet …–1141 | | |
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| | | Aubrey FitzRichard …–1213 | | | | | Richard FitzEustace …–1163 Albreda deLisoures 1128–1194 | | |
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| | | ThomasII deBerkeley …–1321 | | | | MauriceII Lord of Berkeley 1218–1281 | | | | Thomas deBerkeley 1170–1243 | | | | Maurice deBerkeley 1120–1190 | | |
| | | Ralph deSomery Lord Dudley Baron 1151–1210 Margaret FitzGilbert Marshal 1160–1242 | | |
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| | | | | | | John Lackland King of England 1166–1216 Isabella Taillefer of Angouleme 1188–1246 | | |
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| | | WilliamIII deFerrers Earl of Derby …–1253 Margaret deQuincy …–AD 1280/81 | | | | WilliamII deFerrers Earl of Derby 1162–… Agnes deMeschines 1174–1247 | | | | William deFerrers Earl of Derby 1130–1189 | | |
| | | Bertrade deMontfort 1149–1189 | | |
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| | | | | | | Saher deQuincy Earl of Winchester 1155–1219 Margaret deBeaumont …–1234 | | |
| | | Alan Lord of Galloway …–… Margaret of Scotland Huntingdon …–… | | |
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