Geoffrey I of Rennes (980 –
November 20 1008) was
duke of Brittany, from 992 to his death. He was son of Duke
Conan I and Ermengarde of Anjou, whose parents were
Geoffrey I of Anjou and
Adele of Meaux.
He married Hawise of Normandy, daughter of Richard I of Normandy and an unknown mistress.
Issue
Geoffrey and Hawise had:
See also