Geoffroy was the son of Éon I de Bretagne and Agnès Canhiart. The date and place of his birth have not been found.
Éon I de Bretagne |
Geoffroy I Bérenger de Bretagne |
Conan I de Bretagne |
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Ermengarde d'Anjou |
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Havoise de Normandie |
Richard I de Normandie |
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Gunnor de Crépon |
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Alain Canhiart |
Budic IV de Cornouaille |
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Judicaël |
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Mélisende du Maine |
Attribute | Date | Description | Details | Source | Multimedia | Notes |
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Nobility Title | comte de Penthièvre |