Sweyn Forkbeard all England in 1016, following the deaths of Æthelred and his son Edmund Ironside; he succeeded his brother as King of Denmark in 1019 and eventually also ruled Norway, parts of Sweden, Pomerania, and Schleswig. Cnut and his sons, Harold Harefoot and Harthacnut, ruled England over a combined 26-year period (1016–1042). After Harthacnut's death, the English throne reverted to the House of Wessex under Æthelred's younger son Edward the Confessor (reigned 1042–1066). Sweyn's daughter, Estrid Svendsdatter, was the mother of King Sweyn II of Denmark. Her descendants continue to reign in Denmark to this day. One of them, Margaret of
Thomas of Brotherton, 1st Earl of Norfolk after that. They were overseen by wet nurses until they were six years old. Like their parents, they learned to play chess and to ride horses. They were visited by nobles and their half-sister Mary of Woodstock, who was a nun. Their mother often accompanied their father on his campaigns to Scotland, but kept herself well-informed on their well-being. Thomas's father died when he was 7 years old. Thomas's half-brother Edward, became king of England, as "King Edward II", and Thomas was heir presumptive until his nephew, the future King Edward III, was born in 1312. The Earldom of Cornwall