| | Robert Le Strange 1232–1276 Eleanor De Whitchurch 1231–1304 | | |
| | John Le Strange 1194–1269 | | |
| | Robert De Treqoz 1190–1265 Juliana De Canteloupe 1192–1285 | | |
| | Robert De Treqoz 1168–1215 | | |
| | Robert De Ewyas 1125–1195 | | | | Robert F De Ewyas 1085–1147 | | | | Harold De Ewyas 1057–1115 Margaret D Avranches 1053–1136 | | | | Ralph De Sudeley 1026–1057 | | | | Princess Godgifu De England 1004–1055 | | |
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| | | Richard D Avranches 1025–1066 Emma De Conteville 1043–1068 | | | | Judith De Montanolier 994–1015 |
| | | Harlevin De Conteville 1001–1066 Harlette De Falaise 1003–1050 |
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