| | Isabel Longberch 1230–1298 | | |
| | | | |
| | | | | | | | | | Gilbert de Croft 1090–1149 | | | | Bernard de Croft 1060–1103 |
|
|
| | | Orm FitzAilward de Ashton 1100–1185 Emma de Grelley 1104–1172 | | | | | Albert de Grelley 1084–1128 Matilda Agnes FitzNigel 1084–1166 | | | | Robert de Greslet 1067–1154 Beatrix de France 1067–1140 |
| | | William FitzNigel 1058–1134 |
|
|
|
|
|
|
|
|