In Norse mythology, largely recorded in Iceland from traditional material stemming from Scandinavia, numerous tales and information about Thor are provided. In these sources, Thor bears at least fifteen names, is the husband of the golden-haired goddess Sif, is the lover of the jötunn Járnsaxa, and is generally described as fierce eyed, red haired and red bearded. With Sif, Thor fathered the goddess (and possible Valkyrie) Þrúðr; with Járnsaxa, he fathered Magni; with a mother whose name is not recorded, he fathered Móði, and he is the stepfather of the god Ullr. By way of Odin, Thor has numerous brothers, including Baldr. Thor has two servants, Þjálfi and Röskva, rides in a cart or chariot pulled by two goats, Tanngrisnir and Tanngnjóstr (that he eats and resurrects), and is ascribed three dwellings (Bilskirnir, Þrúðheimr, and Þrúðvangr). Thor wields the mountain-crushing hammer, Mjölnir, wears the belt Megingjörð and the iron gloves Járngreipr, and owns the staff Gríðarvölr. Thor's exploits, including his relentless slaughter of his foes and fierce battles with the monstrous serpent Jörmungandr—and their foretold mutual deaths during the events of Ragnarök—are recorded throughout sources for Norse mythology.