Henry I of France whose death Henry was left to deal with his rebel sibling. In 1032, he placated his brother by giving him the duchy of Burgundy which his father had given him in 1016. In an early strategic move, Henry came to the rescue of his very young nephew-in-law, the newly appointed Duke William of Normandy (who would go on to become William the Conqueror), to suppress a revolt by William's vassals. In 1047, Henry secured the dukedom for William in their decisive victory over the vassals at the Battle of Val-ès-Dunes near Caen; however, Henry would later support the barons against
Odo of Bayeux Odo of Bayeux Odo of Bayeux (died 1097), Earl of Kent and Bishop of Bayeux, was the half-brother of William the Conqueror, and was, for a time, second in power after the King of England. Odo was the son of William the Conqueror's mother Herleva and Herluin de Conteville. Count Robert of Mortain was his younger brother. There is uncertainty about his birth date. Some historians have suggested he was born around 1035. Duke William made him bishop of Bayeux in 1049. It has been suggested that his birth was as early as 1030, making him about nineteen rather than