| Father | Male Roger De Montgomery |
| Born | Abt 1004 | Of Normandy, France |
| Died | 1122 | |
| Buried | ||
| Married | 1047 | |
| Other Spouse | Ademode De La Marche | F9564 | |
| Married | ||
| Father | Roger De Montgomery | F9568 Group Sheet | |
| Mother | ||
| Mother | Female Mabel De Alencon |
| Born | Abt 1014 | Alecon, Bell, France |
| Died | 1081 | , France |
| Buried | ||
| Father | Guillaume II De Alencon | F9569 Group Sheet | |
| Mother | Hildeburge De Beaumont | F9569 Group Sheet | |
| Child 1 | Male + Robert II De Alencon |
| Born | Abt 1038 | |
| Died | 1118 | |
| Buried | ||
| Spouse | Agnes Countess Of Ponthieu, [Countess] | F9565 | |
| Married | ||
| Child 2 | Female + Maude De Montgomery |
| Born | Abt 1038 | Mortaigne, S-Mnch, France, France |
| Died | ||
| Buried | ||
| Spouse | Robert De Mortaigne | F6644 | |
| Married | Bef 1057 | |