William I Duke of Normandy - Rouen Cathedral. This tomb of William I Duke of Normandy (d942) in Rouen Cathedral dates from the 14th century. The earlier burial had been in the ancient sanctuary near the end of what is now the nave. FranceSeine-MaritimeMedievalGothicEffigySculptureTomb Read more about William I Duke of Normandy - Rouen Cathedral. Français