Midgard Serpent (Marvel Comics)
Jormungand, also known as The Midgard Serpent or World Serpent, is a fictional character that appears in comic books published by Marvel Comics. The character, based on the serpent Jörmungandr from Norse mythology, first appears in "Marvel Tales" #105 (Feb. 1952), in the period between the Golden Age of Comic Books and the Silver Age of Comic Books.
Harald the Old
Whereas "Hversu" and "Ynglinga saga" have no information about Halfdan's mother (who was presumably Harald's wife), "Hervarar saga" provides the information that she was Hild, the daughter of the Gothic king Heiðrekr Ulfhamr, the son of Angantyr who defeated the Huns.