William the Conqueror was a powerful and influential figure in English history. He was the Duke of Normandy and became the King of England after his victory at the Battle of Hastings in 1066. He is known for his strong leadership, military prowess, and the establishment of Norman rule in England. William the Conqueror's reign had a lasting impact on the development of England and its culture, including the construction of notable landmarks such as the Tower of London and the Bayeux Tapestry.