| Father | Hugh De GRENTEMESNIL (1030 - 1094) |
| Mother | Adeliza Or Alice BEAUMONT (1035 - 1091) |
| Sibling | William De GRENTEMESNIL (1054 - ) |
| Sibling | Adeliza De Grantesmesnel (1060 - 1111) |
| Sibling | Halewise De GRENTEMESNIL (1058 - ) |
| Sibling | Hugh De GRENTEMESNIL (1060 - ) |
| Sibling | Rohese De GRENTEMESNIL (1062 - ) |
| Sibling | Ivo (Ives) De GRENTMESNIL (1064 - 1118) |
| Sibling | Alberic De GRENTEMESNIL (1066 - 1119) |
| Sibling | Matilda (Maud) De GRENTEMESNIL (1068 - ) |
| Sibling | Agnes De GRENTEMESNIL (1070 - ) |
| Sibling | Hawise De GRENTEMESNIL (1072 - ) |