sentences:  Hati's patronymic "Hróðvitnisson", attested in both the Eddic poem "Grímnismál" and the "Gylfaginning" section of the "Prose Edda", indicates that he is the son of Fenrir, for whom Hróðvitnir ("Famous Wolf") is an alternate name.According to Snorri, Hati's mother is the giantess, not named but mentioned in the Eddic poem "Völuspá", who dwells to the east of Midgard in the forest of Járnviðr ("Ironwood") and "fosters Fenrir's kin".Snorri states that this giantess and witch bears many giants for sons, all in the form of wolves, including Hati and Sköll, who is thus implied to be Hati's brother.