Hmmmm I blame my history teacher for this misinformation, I was a know-it-all teenager at the time so I cannot be held accountable to any blame.
Obviously I meant Sir Walter Raleigh who was Bonny Prince William of Orange the Conqueror's 2nd in command of the English fleet. D'oh! Sorry.
Bit luckily the English King Cnut (Canute) turned them back by making the tide go out.