Cnut the Great (Old Norse: Knútr inn ríki; c. 985 or 995 – 12 November 1035), more commonly known as Canute, was a king of Denmark, England, Norway, and parts of Sweden, together often referred to as the Anglo-Scandinavian or North Sea Empire. After the death of his heirs within a decade of his own and the Norman conquest of England in 1066, his legacy was largely lost to history. Historian Norman Cantor has made the statement that he was "the most effective king in Anglo-Saxon history", despite his not being Anglo-Saxon.