Geoffroy was the son of Eudon II de Bretagne and Berthe I de Cornouaille. The date and place of his birth have not been found.
Eudon II de Bretagne |
Alain I de Porhoët |
Eudon I |
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Emme Anne de Léon |
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Villana de Castilla |
Alphonse VI de Castilla |
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Berthe I de Cornouaille |
Conan III de Cornouaille |
Alain IV de Bretagne |
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Ermengarde d'Anjou |
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Mathilde Fitz Roy |
Henri I de Normandie |
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Note 1
morte jeune