What was the name of the father of the Norwegian king at the center of the Saga of Harald Fairhair?
Halfdan the Black Halfdan the Black (Old Norse: "Halfdanr Svarti") (  810 –  860 ) was a ninth-century king of Vestfold. He belonged to the House of Yngling and was the father of Harald Fairhair, the first king of Norway.
Hagen (legend) Hagen (German form) or Högni ("Old Norse" Hǫgni, often anglicized as Hogni) is a Burgundian warrior in tales about the Burgundian kingdom at Worms. Hagen is often identified as a brother or half-brother of King Gunther (Old Norse "Gunnarr"). In the "Nibelungenlied" he is nicknamed "from Tronje".