Robert of Normandy, on the left of his father, William the Conqueror. From the Bayeux Tapestry, 11th century. Bayeux Museum, Normandy, France Properties Image Credit Bayeux Tapestry - Scene 19: siege of Dinan. The soldiers of William, Duke of Normandy attack the motte-and-bailey castle of Dinan. Conan II, Duke of Brittany surrenders and gives the keys to Dinan via a lance.