William the Great, also known as William I of England, was a significant historical figure who ruled from 1066 until his death in 1087. He is best known for leading the Norman Conquest of England, which began with his victory at the Battle of Hastings. This event marked the end of Anglo-Saxon rule and the beginning of Norman influence in England. William was born in 1028 in Falaise, Normandy, and he became the Duke of Normandy at a young age. His reign brought about major changes in English society, including the introduction of the feudal system and the construction of iconic castles, such as the Tower of London. His legacy continues to shape English history today.