Henry was the second son of Robert II the Pious, he was associated with the throne in 1026. He married the daughter of the Emperor of Germany then Anne of kyiv. Henri must oppose his mother who wants to impose her third child on the throne and the powerful Eudes II of Blois. Henri calms the situation by awarding Burgundy (which he had received from his father) to his half-brother. In 1047, Henri won the battle of Vals les Dunes alongside William of Normandy, before opposing him. Henry I died in 1060, his son Philip I succeeded him.
Robert II the Pious