Geoffrey I, Duke of Brittany French noble (1000–1008) Parents Ermengarde-Gerberga of Anjou Conan I of Rennes Children Evenus de Bretagne Alan III, Duke of Brittany Odo, Count of Penthièvre Adela of Rennes Siblings Judicaël de Vannes Judith of Brittany Geoffrey of Angoulême Alduin II of Angoulême Catwallon Partners Hawise of Normandy
