Unknown de Crepon was born 920 in (Normandie+ France) .
Children
| Offspring of Unknown de Crepon and unknown parent | |||
| Name | Birth | Death | Joined with |
| Gunnora de Crepon (942-1031) | |||
| Herfast de Crépon (-985) | 955 Normandy, France | 985 Normandy, France | |
| Senfria de Crepon (948-) | |||
| Duvelina de Crepon (951-) | |||
| Wevia de Crepon (955-) | 955 Normandie, France | Osbern de Bolbec (950-1023) | |
