| Robert de Grantmesnil |
Ivo Count of Beaumont |
| Hawise |
| Hugh de Grantmesnil | Adelisa de Beaumont |
| b. d. 22 Feb 1098, England . 1st s. At Hastings and made his fortune thereby. In Domesday. |
b. d. 11 Jul 1091 . In Domesday. |
| Robert de Grantmesnil Ivo de Grantmesnil |