| Father | Robert de Beaumont-le-Roger Comte de Meulan & 1st Earl of Leicester (1046 - 1118) |
| Mother | Lady Elisabeth de Vermandois Countess of Leicester (1085 - 1131) |
| Sibling | Eleanor Beaumont (1100 - 1157) |
| Sibling | Maude de Beaumont Countess of Devreux (1106 - 1197) |
| Sibling | Earl Hugh de Beaumont (1106 - 1142) |
| Sibling | Adeline de Beaumont (1105 - 1178) |
| Sibling | Agnes Beaumont (1108 - 1175) |
| Sibling | Robert de Beaumont 2nd Earl Leicester ( - 1168) |
| Sibling | Waleran Beaumont 1st Earl of Worcester (1104 - 1166) |
| Sibling | Lady Adeline de Beaumont (1102 - 1137) |
| Sibling | Richard de Beaumont de Granville (1110 - 1147) |
| Sibling | Emma de Beaumont (1102 - 1118) |
| Sibling | Isabel de Beaumont (1102 - 1147) |