See also
| Husband: | Guerry + of MORVOIS (950- ) | |
| Wife: | Ave + of OSTREVANT (950- ) | |
| Children: | Guerric I + of AVESNES (980- ) | |
| Name: | Guerry + of MORVOIS | |
| Sex: | Male | |
| Father: | - | |
| Mother: | - | |
| Birth | 0950 | Marvois, France |
| Name: | Ave + of OSTREVANT | |
| Sex: | Female | |
| Father: | Adabert + of OSTREVANT (900- ) | |
| Mother: | Regina + (900- ) | |
| Birth | 0950 | Ostrevant, France |
| Name: | Guerric I + of AVESNES | |
| Sex: | Male | |
| Birth | 0980 | Avesnes, Pas-de-Calais, France |