| | RogerIV deToeni Lord of Flamstead 1160–1208 Constance deBeaumont …–1226 | | |
| | Marguerite deBeaumont 1125–1185 | | |
| | Margaret deBeaumont …–1234 Saher deQuincy Earl of Winchester 1155–1219 | | |
| | RobertIII deBeaumont Earl of Leicester 1130–1190 Petronilla Grandmesnil 1134–1212 | | |
| | RobertII deBeaumont Earl of Leicester 1104–1168 | | |
| | Isabelle FitzGilbert deClare 1171–1220 William the Protector Marshall 1146–1219 | | |
| | Richard Strongbow deClare Earl of Pembroke 1130–1176 Eva MacMurrough 1115–1186 | | |
| | Elizabeth deBeaumont 1104–1172 Gilbert Strongbow FitzGilbert deClare 1100–1148 | | |
| | Robert deBeaumont Earl of Leicester 1040–1118 Isabel deVermandois 1085–1130 | | |
| | WilliamV Mauduit Lord of Hanslope …–1257 | | |
| | Waleran deNewburgh Earl of Warwick 1153–1204 | | |
| | Roger deNewburgh Earl of Warwick …–1153 Gundred deWarenne 1117–1166 | | |
| | Henry deNewburgh Earl of Warwick 1046–1123 | | |
| | Roger Seigneur deBeaumont 1022–1094 | | | | Waleran Count of Meulan …–1069 | | | | Robert Count of Meulan …–… | | | | WalterII the White Count of Vexin …–1024 | | | | Walter Count of Vexin 925–998 | | |
| | | Bernard Count of Senlis 875–945 | | |
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| | | Humphrey deVeilles 975–1044 Aubreye deLaHaie 984–1045 | | | | Thorold Seigneur de Pont-Audemer 962–… |
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