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 Ætheling His mother was Agatha, who was described as a relative of the German Emperor, but whose exact identity is unknown. He was his parents' only son but had two sisters, Margaret and Cristina. In 1057, the childless king of England, Edmund Ironside's half-brother Edward the Confessor, who had only recently become aware that his nephew was still alive, summoned Edward back to England with his family to take up his place at court as heir to the throne. The returning exile died in uncertain circumstances shortly after his arrival in England. Edgar, at only six years old, was left as