Kingdom of England unity ever since. During the reign of Æthelred the Unready (978–1016), a new wave of Danish invasions was orchestrated by Sweyn I of Denmark, culminating after a quarter-century of warfare in the Danish conquest of England in 1013. But Sweyn died on 2 February 1014, and Æthelred was restored to the throne. In 1015, Sweyn's son Cnut the Great (commonly known as Canute) launched a new invasion. The ensuing war ended with an agreement in 1016 between Canute and Æthelred's successor, Edmund Ironside, to divide England between them, but Edmund's death on 30 November of that year left England united
Edgar, King of Scotland in reference to the succession to the crown. Edgar, the king's eldest son, assumed it as his lawful right, but Donald, King Malcolm's brother, having usurped authority, opposed him with great cruelty, and at length the brave youth [Edgar] was murdered by his uncle. Alexander [I], however, his brother, slew Donald, and ascended the throne; being thus the avenger as well as the successor of his brother...". Benjamin Hudson dismisses the story as "completely false". But its existence points to the circulation of "incorrect" tales about the monarchs of the late 11th century. Verses of "The Prophecy of Berchán" allude