Hervé Ier was born about 1070. Hervé Ier's father was Guiomar II De Léon and his mother was Orwen De Cornouaille. His paternal grandfather was Alain De Léon. He had a sister named Anne Ou Emma. He was the younger of the two children. He died about 1168.
General Notes
#Générale# comte de Léon , fonda le prieuré de Saint Martin de Morlaix, suivit s on père en Terre Sainte en 1096