Guðmundr (Old Norse: [ˈɡuðˌmundz̠], sometimes anglicised as Godmund) was a semi-legendary Norse king in Jotunheim, ruling over a land called Glæsisvellir, which was known as the warrior's paradise. Guðmundr appears in the following legendary sagas: Bósa saga ok Herrauðs. Helga þáttr Þórissonar. Hervarar saga ok Heiðreks. Norna-Gests þáttr. Þorsteins þáttr bæjarmagns. He also appears in Saxo Grammaticus' Gesta Danorum (Book VIII) and in Samsons saga fagra, one of the chivalric sagas.
https://en.wikipedia.org/wiki/Gu%C3%B0mundr