Canute III of Denmark (The Danish North Sea)

Canute III (also known as Harthacnut) kept the dominion of England under Danish control, although he lost Norway to Magnus the Good. Canute invaded Wessex after its support of the rebels in East Anglia and united England for the first time since the invasion of Sweyn I. Prince Alfred of Wessex was executed through the Blood Eagle technique while his brother King Edward III, fled into self-exile in Normandy.

Canute was a successful ruler, keeping his father's empire together (apart from Norway). He continued his father's policy of uniting the Danes and the English through cultural bonds and brutality. Canute also reformed the Benedictine rule in England, and he is often described as being a harsh ruler who transformed into a fair king.

Canute's legacy, however, was damaged thanks to a succession crisis that occurred towards the end of his reign. Having no children of his own, Canute appointed Anglo-Saxon nobleman, Harold Godwinson, to be his heir. This was oppossed by Sweyn Estridsson (grandson of King Sweyn I) and Duke William II of Normandy, who claimed the English Kingdom to be his own. Canute passed away in the winter of 1066, he died in Copenhagen according to some sources, and his empire would be engulfed in violence decades following his reign.