| Father | Robert 1st de Beaumont Sire de Beaumont, Comte de Meullent ( - ) |
| Mother | Elisabth Isabel de Vermandois (de Crepi/Crepy) Countess of Leicester (1081 - ) |
| Sibling | Emma de Beaumont ( - 1197) |
| Sibling | Lady Hawise de Beaumont (1111 - 1197) |
| Sibling | Waleran 4th de Beaumont Count of Meulan (1104 - ) |
| Sibling | Sir Knight Robert 2nd "Bossu" de Beaumont Earl of Leicester and Justiciar of England (1104 - 1166) |
| Sibling | Aubree de Beaumont ( - ) |
| Sibling | Agnes de Beaumont ( - ) |
| Sibling | Maud de Beaumont ( - ) |
| Sibling | Isabel de Beaumont ( - ) |