A masterpiece of 11th-century Romanesque art, the Bayeux Tapestry recounts the conquest of England by William, Duke of Normandy. In 1064, the King of England, Edward the Confessor, instructed his brother-in-law, Harold, to travel to Normandy in order to offer his younger cousin, William, the throne of England. Before returning to England, Harold took an oath of allegiance to William on the relics of Bayeux Cathedral. After Edward's death, Harold perjured himself and agreed to be crowned King of England in place of William on January 6, 1066. The Duke of Normandy decided to claim the throne and crossed the Channel at night with his fleet. On the morning of October 14, 1066, the decisive Battle of Hastings began between William's army and Harold's men. The Anglo-Saxon was killed, and William was crowned King of England in December 1066 at Westminster Abbey.