Æthelstan died in June 1014 and Æthelred in April 1016, leaving Edmund and Sweyn's son Cnut to dispute the throne. In October 1016 Cnut and Edmund agreed to divide England between them, but Edmund died a month later, leaving Cnut as undisputed king.
Following Æthelstan's and Æthelred's deaths, Edmund and Sweyn's son Cnut became embroiled in a power struggle for the English throne. In October 1016, they agreed to divide England between them, but Edmund died shortly after, leaving Cnut as the sole king.