| | Lord Ralph de Basset 1253–1299 | | |
| | Sir John de Grey 1205–1267 | | |
| | Nichole de Leigh 1185–1240 | | |
| | | | |
| | | | | | Richard I Basset 1097–1144 | | | | | | | | Thurston Basset 1050–1088 | | | | | Lord Robert de Brus 1030–1088 Emma de Brittany 1034–1094 | | |
|
|
| | | Lord Robert de Brus 1030–1088 Emma de Brittany 1034–1094 | | | | Sir Rognvald de Brus 1011–1046 Countess Arlogia of Orkney 1015–1045 | | |
| | | Count Alan de Bretagne 1000–1046 Bertha de Blois 1015–1085 | | |
|
|
|
|
| | | Geoffrey de Ridel 1075–1120 | | | | | | | | Geoffrey Taillefer 1017–1075 | | |
| | | Adeliza de Saint Saveur 1030–1060 | | |
|
|
| | | Hugh de Avranches 1048–1101 Ermentrude of Clermont 1067–1094 | | | | Viscount Richard de Avranches le Goz 1024–1084 Emma de Conteville 1030–1066 | | |
| | | Hugh de Clermont 1030–1101 Marguerite de Montdidier de Roucy 1040–1110 | | |
|
|
|
|
|
|
|
|