| Father | Robert II "Bossu" De Beaumont (Twin), 2nd Earl of Leiceste (1104 - 1168) |
| Mother | Amicie Gael Dame De Breteuil ,Etdepacy-Sur-Eure De Montfort (1105 - 1168) |
| Sibling | Countess Margaret De Beaumont of Winchester (1154 - 1235) |
| Sibling | Isabel Elizabeth De Beaumont Countess of Leicester (1122 - 1188) |
| Sibling | Eloise Beaumont (1125 - 1197) |
| Sibling | Hawice Beaumont (1121 - 1197) |
| Sibling | Earl of Leicester Robert (1135 - 1190) |
| Sibling | Lady Maude De Beaumont (1132 - 1197) |
| Sibling | Amice Debeaumont (1128 - ) |
| Sibling | Hawise De Beaumont (1136 - ) |
| Sibling | Henry De Bellomont (1148 - ) |
| Sibling | Henry Debeaumont (1145 - 1149) |
| Sibling | Gervace De Bellomont (1138 - ) |
| Sibling | Earl Robert De Beaumont (1135 - 1190) |
| Sibling | Amice De Beaumont (1145 - ) |
| Sibling | Robert De Beaumont (1134 - ) |
| Sibling | Countess Hawise De Beaumont (1124 - 1197) |
| Sibling | Leicester Beaumont (1134 - 1197) |
| Sibling | Adeline (Gundrea) ( Bellmont) Beaumont Countess Corbeil (1124 - ) |
| Sibling | Geoffrey De Bellomont (1146 - ) |
| Sibling | Henry De Bellomonte (1122 - ) |
| Sibling | Hawise Debeaumont (1134 - 1197) |
| Sibling | Gervase Paganel Leicerster ( - ) |
| Sibling | Elizabeth De Beaumont (1140 - ) |
| Sibling | Hawise De Beaumont (1134 - 1197) |
| Sibling | Gervace De Beaumont (1138 - ) |
| Sibling | Henry De Beaumont (1148 - ) |
| Sibling | Roscelin Debeaumont (1125 - ) |
| Sibling | Emma Beaumont (1129 - 1197) |
| Sibling | Maud De Beaumont (1137 - 1168) |
| Sibling | Gervase Paganel Dudley (1138 - ) |
| Sibling | Robert Debeaumont (1140 - 1207) |
| Sibling | William De Beaumont (1142 - 1218) |
| Sibling | John De Beaumont (1144 - 1244) |
| Sibling | Roger De Beaumont (1128 - ) |
| Sibling | Geoffrey de Beaumont (1146 - ) |
| Sibling | Robert III De Beaumont Earl of Leicester (1135 - 1190) |
| Sibling | Robert De Beaumont 4th Earl of Leicester (1130 - 1204) |
| Sibling | Margaret De Beaumont ( - ) |
| Sibling | Hawise De Beaumont (1129 - 1197) |
| Sibling | Isabel Elizabeth Deleicester (1120 - 1188) |
| Sibling | Isabel Debeaumont (1122 - 1190) |
| Sibling | Henry Debeaumont (1124 - ) |
| Sibling | Hawise Beaumont Debellomont (1125 - 1138) |
| Sibling | Hawise Debeaumont Lumbus (1129 - ) |
| Sibling | Adela Belvoir Debeaumont (1129 - ) |
| Sibling | Gervace Debeaumont (1138 - ) |
| Sibling | Ermigie Amelie Debeaumont (1139 - ) |