Sibell de Crepon

Sibell was born in 0952.  Sibell's father was Herbastus De Crépon and her mother was Cyrid of Sweden.  Her paternal grandparents were Ranulf De Crépon and Gunnor of Denmark. She had two brothers and five sisters, named Osburn, Herfast, Gonnor, Wevia Duceline, Senfrie, Avelina and Béatrix.  She was the fourth oldest of the eight children.

They had a son named Roger I Hugh , Count of.