| Father | Vicomte D’Avranches Thurstan Le Goz (989 - 1041) |
| Mother | Judith De Montrolier (982 - 1044) |
| Sibling | Richard D'Avranches (1025 - 1082) |
| Sibling | Richard D'Avranches Viscomte D'Avranches Le Goz Vicomte (1025 - 1066) |
| Sibling | Robert Chamberlain Bagot (1015 - 1070) |
| Sibling | Robert Lebigod (1015 - 1071) |
| Sibling | Robert Le Bigod (1023 - 1071) |
| Sibling | Renouf Le Goz D'Avranches (Born le Goz) ( - 1090) |
| Sibling | Robert Bigod (1000 - 1071) |
| Sibling | Humphrey de Tillieul (1017 - ) |
| Sibling | Thurstan Haldup Seigneur De La Haye Du Puits (1013 - 1079) |
| Sibling | Gislebert Le Goz ( - ) |