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
Edward IV of England Edward of York was born at Rouen in France, the second son of Richard, 3rd Duke of York (who had a strong genealogical claim to the throne of England), and Cecily Neville. He was the eldest of the four sons who survived to adulthood. He bore the title Earl of March before his father's death and his accession to the throne. Edward's father Richard, Duke of York, had been heir to King Henry VI (reigned 1422-1461) until the birth of Henry's son Edward in 1453. Richard carried on a factional struggle with the king's Beaufort relatives. He established a dominant