| Male Earl of Leicester Robert Beaumont, III |
| Birth | 1135 | |
| Death | 1190 | , , , Greece |
| Burial | ||
| Marriage | 1155 | |
| Father | Duke of Leicester Robert Beaumont, II | F1257 Group Sheet | |
| Mother | Amicia De Waer | F1257 Group Sheet | |
| Female Petronilla Grentesmaisnill |
| Birth | ||
| Death | ||
| Burial | ||
| Father | Hugh Grentesmaisnill | F2286 Group Sheet | |
| Mother | Alice Beaumont | F2286 Group Sheet | |
| Female + Margaret Beaumont |
| Birth | 1156 | |
| Death | 12 Jan 1236 | |
| Burial | ||
| Spouse | Saher De Quincy, IV | F2223 | |
| Marriage | ||