The Normanization of England began in 911 when the Vikings settled in northern France and became known as Normans. In 1066, William, Duke of Normandy invaded and defeated King Harold II of England at the Battle of Hastings, beginning the Norman conquest. The conquest brought extensive changes including the replacement of English elites with Normans, introduction of feudalism, establishment of castles, and making French the language of nobility and Latin the language of religion and law. The conquest permanently shaped England by establishing Norman rule.