William the Conqueror is a cavalry hero found in the Hastings campaign and the Scenario Editor in Age of Empires II: The Conquerors. He is based on the first Norman King of England with the same name who is a descendant from Rollo but is best known for the successful Norman conquest of England. This invasion was the last time the British Isles was conquered and ruled by a foreign kingdom or country.

In-game, he is represented by a knight with a lance. Like other cavalry, William the Conqueror is affected by all upgrades that affect cavalry as well as any other bonuses that affect them. As a hero, he cannot be converted and can regenerate health.

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