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.
Gunther Gunther (Gundahar, Gundahari, Latin "Gundaharius", "Gundicharius", or "Guntharius", Old English "Gūðhere", Old Norse "Gunnarr", anglicised as "Gunnar", d. 437) was a historical King of Burgundy in the early 5th century. Legendary tales about him appear in Latin, medieval Middle High German, Old Norse, and Old English texts, especially concerning his relations with Siegfried (Sigurd in Old Norse) and his death by treachery in the hall of Attila the Hun.