Ethelred II (c. 968 – April 23 1016) was also known as Ethelred the Unready. He was King of England twice. The first time was from 978 to 1013, and the second time was 1014 to 1016. He was the son of Edgar, and Aelfthryth. For most of his reign he had to fight off Viking invaders.
The word unready in his name means "Unread." Which was a nickname for "Poor Counciled' or "Bad Adviced." When, as a young boy, he asked for opinions he was given poor advice.