He divided England into Wessex, Mercia, East Anglia, and Northumberland, and received the last Danegeld.
This ruler's mother was Swiatoslawa, the daughter of Mieszko I of Poland. He signed a treaty at Oxford probably written by Wulfstan of York. Holy Roman Emperor Conrad II gave him Schleswig and Pomerania. His forces were positioned on Beacon Hill in a battle this man won, at which Thorkell the Tall killed Ulfcytel. He divided England into Wessex, Mercia, East Anglia, and Northumberland, and received the last Danegeld. At Assandun, he defeated Edmund Ironside. He had earlier married Emma of Normandy, the widow of Aethelred the Unready. For 10 points, name this son of Sweyn Forkbeard and father of Hardecanute, a great Danish king who ruled England.
This ruler's mother was Swiatoslawa, the daughter of Mieszko I of Poland.
Canute I [or Cnut the Great; accept Knud den Store or Knut den Mektige or Knutr inn riki]