For ten points,  name this husband of Sif and serial slayer of giants, the Norse god of thunder.
According to one text, this god's son is Loridi and his teacher was Loricus, whom this god slew at the age of twelve, while a different text claims that this god was raised by Hlora and Vingnir. This god rescued Aurvandil the Bold, the husband of the sorceress Groa, causing part of a shield to be stuck in his head, and one Poetic Edda consists entirely of this god arguing with the ferryman Harbath. This father of Thurd has the servant Thalfi, and he caused the deaths of Alviss and Hrungnir. The Grimnismol states that the best of halls is this god's hall of Bilskirnir, from which he can be pulled by two goats on his chariot. For ten points,  name this husband of Sif and serial slayer of giants, the Norse god of thunder.
According to one text, this god's son is Loridi and his teacher was Loricus, whom this god slew at the age of twelve, while a different text claims that this god was raised by Hlora and Vingnir.
{Thor} [accept: {Donar}; {Donner}; {Tror}]