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Male William d'Eu I of Brionne and Eu Click to view William d'Eu I of Brionne and Eu in the family tree

William was born about 0955 in Normandy, France.  William's father was Duke Richard ("the Fearless", "Sans Peur") I of Normandy and his mother was Gunnora Haraldsdottir de Crepon.  His paternal grandparents were Duke William ("Longsword", "Longue Epaee") I of Normandy and Esprista de Senlis; his maternal grandfather was King Harald II ("the Dane", "Bluetooth") Gormsson of Denmark and his maternal grandmother is Princess Gunhilda Olafsdottir of Sweden. He had four brothers and four sisters, named "Curthose", Mauger, Godfrey, "the Good", Hawise, Beatrix, Emma and Beatrice. He had a half-brother and five half-sisters, named William Hieme, Muriella, Pappia, Fredistina, Susannah and Alix.


William's first family with Lesceline de Harcourt

They had four sons named Hugh, William, Pons and Hugh.


William's second family with Beatrice le Gros

They had a daughter named Constance.

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