| | JohnVIII Mautravers …–1348 | | |
| | Milicent deBerkeley …–1322 JohnVII Lord Mautravers 1290–1363 | | |
| | MauriceIII deBerkeley 1271–1326 | | |
| | ThomasII deBerkeley …–1321 | | | | 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 | | | | Robert deFerrers 1100–1160 | | |
| | | WilliamII deBraose …–1192 | | |
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| | | Bertrade deMontfort 1149–1189 | | | | RanulphIV deGernon Earl of Chester 1100–1153 Maud FitzRobert 1120–1189 | | |
| | | SimonIII deMontfort Earl of Evreux 1117–1180 | | |
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| | | | | | | Saher deQuincy Earl of Winchester 1155–1219 Margaret deBeaumont …–1234 | | | | Robert deQuincy 1100–1197 | | |
| | | RobertIII deBeaumont Earl of Leicester 1130–1190 Petronilla Grandmesnil 1134–1212 | | |
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| | | Alan Lord of Galloway …–… Margaret of Scotland Huntingdon …–… | | | | David of Huntingdon …–1219 | | |
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| | | MauriceII Lord of Berkeley 1218–1281 | | | | Thomas deBerkeley 1170–1243 | | | | Maurice deBerkeley 1120–1190 | | | | Robert FitzHarding …–1170 | | |
| | | RogerIII deBerkeley …–1170 | | |
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| | | Ralph deSomery Lord Dudley Baron 1151–1210 Margaret FitzGilbert Marshal 1160–1242 | | | | | John FitzGilbert Marshall 1126–1165 | | |
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| | | | | | | John Lackland King of England 1166–1216 Isabella Taillefer of Angouleme 1188–1246 | | | | HenryII King of England 1133–1189 Eleanor Duchess of Aquitaine 1122–1204 | | |
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