2. William the Conqueror
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William the Conqueror is also known as William I.
William invaded England in 1066 with his fleet at the Battle of Hastings. Just a few months later, he was crowned king.
The ruler became the first Norman King of England and ruled from 1066 until he died in 1087. Before that, he had served as the Duke of Normandy.
He is best known for his role in the Norman Conquest of England, but he struggled to consolidate England.
William also struggled because he was considered an illegitimate son, but this began to clear up as he aged.
He also found an ally in the family of his wife, Matilda of Flanders.