On October 14th 1066 King Harold Godwinson was defeated by the invading army of William, duke of Normandy, establishing the Normans as rulers of England.
Harold almost certainly did not die due to an arrow in his eye. The Norman (winners,) Song of the Battle of Hastings, say that he is killed by 4 knights & dismembered. Anglo Saxon accounts say it was an arrow to the head.
Harold was our last Anglo Saxon king.