| Father | Male Robert III De Beaumont, [Earl Leicester] |
| Born | Abt 1129 | Of, Leicester, Leicestershire, England |
| Died | 24 Aug 1190 | , Duras, Greece |
| Buried | ||
| Married | Bef 1154/1158 | |
| Father | Robert II De Beaumont, [Earl] | F6613 Group Sheet | |
| Mother | Amice De (Uta) Gael (Waiet), [Countess] | F6613 Group Sheet | |
| Mother | Female Petronilla Grentmesnil |
| Born | Abt 1133 | Of, Leicestershire, England |
| Died | 25 Mar 1212 | Leicester, Leicestershire, England |
| Buried | Leicester Abbey, Leicester, Leicestershire, England |
|
| Father | Hugh II De Grentmesnil, Baron | F7130 Group Sheet | |
| Mother | Mrs. Hugh De Grentmesnil | F7130 Group Sheet | |
| Child 1 | Female + Amice De Beaumont, Countess |
| Born | Abt 1151 | Of, Leicester, Leicestershire, England |
| Died | ||
| Buried | ||
| Spouse | Simon Seigaeur Of Demontfort | F7106 | |
| Married | Abt 1171 | |
| Spouse | Simon III De Montfort, Earl | F7107 | |
| Married | ||
| Child 2 | Female + Margaret De Beaumont |
| Born | Abt 1153 | Of, Leicester, Leicestershire |
| Christened | 1234 | |
| Died | 5 Jan 1234 | |
| Buried | ||
| Spouse | Saher IV De Quincy, Earl | F7063 | |
| Married | Bef 1172 | , England |
| Child 3 | Male William De Bretuil |
| Born | Abt 1155 | Of, Leicester, Leicestershire, England |
| Died | Aft 1188 | |
| Buried |
| Child 4 | Male Robert De Bretevil, Earl |
| Born | Abt 1157 | Of, Leicester, Leicestershire, England |
| Died | 13 Oct 1204 | |
| Buried | ||
| Spouse | Laurette De Braiose | F7108 | |
| Married | ||
| Child 7 | Female Mabel De Beaumont |
| Born | Abt 1161 | Of, Leicester, Leicestershire, England |
| Died | ||
| Buried | ||
| Spouse | William Meullent | F7109 | |
| Married | ||