Sweyn Forkbeard, King of Denmark and King of England dies on February 3, 1014 having ruled England for only five weeks. His son, Cnut the Great, was proclaimed king of England by his troops there, but his older brother, Harald II, became king of Denmark, leaving Cnut to fight for his claim to England.
The English nobility invited the exiled King Æthelred back to the throne, driving Cnut out of England. In 1016, Cnut returned to England and became king and went on to succeeded his brother as King of Denmark in 1019.