Madame Eon de Penthièvre Comtess de Penthièvre

   FamilySearch ID: GVK4-MDJ.

Eon married Eon De Penthièvre Comte De Penthièvre, son of Duc Geoffroi Ier de Bretagne et comte de Rennes and Havoise de Normandie. (Eon De Penthièvre Comte De Penthièvre was born in 999 in Rennes, Bretagne, France, died on 7 Jan 1079 in Cesson, Seine-et-Marne, France and was buried in 1079 in Saint-Brieuc, Côtes-d'Armor, France.)