Hrœrekr Ringslinger
Hrœrekr Ringslinger or Ringscatterer (Old Norse: Hrærekr slöngvanbaugi, Old Danish: Rørik Slængeborræ or Rørik Slyngebond) was a legendary king of Zealand or Denmark, who appears in Gesta Danorum, Gesta Danorum på danskæ, Sögubrot, Njáls saga, Hversu Noregr byggðist, Skjöldunga saga, Bjarkarímur, and Hrólfs saga kraka. Connection with such historical figures such as Horik I, who ruled Denmark around 854 for a dozen or so years, or the founder of the Rurik dynasty is fraught with difficulty.
The Danish and the West Norse traditions have little more in common than his name, his title, and his living within a few generations of Hrólfr Kraki. In the Danish tradition, he is described as the grandfather of Prince Hamlet.