| Male Duke of Alencon Guillaume Talvas, II |
| Birth | 995 | |
| Death | 1048 | |
| Burial | ||
| Marriage | ||
| Father | Duke of Alencon Guillaume Talvas, I | F1253 Group Sheet | |
| Mother | ||
| Female Hildeburge Beaumont |
| Birth | 995 | |
| Death | Yes, date unknown | |
| Burial | ||
| Father | Arnulf Beaumont | F1472 Group Sheet | |
| Mother | ||
| Female + Mabel Talvas |
| Birth | ||
| Death | 2 Dec 1079 | Bures, France |
| Burial | ||
| Spouse | Earl of Shrewsbury Roger Montgomery | F1245 | |
| Marriage | 1048 | |