Family: Robert de Grentmesnil / Hawise de Eschauffen (F2743)
Gervase de Grentmesnil (977- ) |
| Giroie de Eschauffen (981- ) |
Gisele de Montfort (983- ) |
Robert de Grentmesnil (1003-1038) 
|
| Hawise de Eschauffen (1007- )
|
Hugh de Grentmesnil, Lord of Hinckle (1032-1098)  |
| Robert de Grentmesnil (1034- ) |
| Arnold de Grentmesnil (1036- ) |
| Adeliza de Grentmesnil (1038- ) |