William the Conqueror and the Battle of Hastings (1066):
The Duke of Normandy claimed the throne of England and invaded. At the Battle of Hastings the Normans defeated the Saxon army, and William eventually conquered England. William established a monarchy that rules to this day.
William, Duke of
Normandy (from the Bayeux Tapestry)
(click here for a YOUTUBE video animation of the famous Bayeux Tapestry depicting the battle )

Path of the Normans, from Hastings to York