Hreidmarr

In Norse mythology, Hreiðmarr (Old Norse: [ˈhrɛiðˌmɑrː]; anglicised as Hreidmar) is a sorcerer. He is featured in the Vǫlsunga saga in Snorri Sturluson's Prose Edda.

Hreiðmarr was the father of Reginn, Fáfnir, Ótr, Lyngheiðr and Lofnheiðr. He owned a house of glittering gold and flashing gems built by Reginn and guarded by Fáfnir. After Ótr was accidentally killed by Loki, the Æsir repaid Hreiðmarr with Andvari's gold and the ring Andvaranaut, a magical ring that could create gold. However, Andvari had cursed the ring to bring misfortune and destruction to whoever else possessed it. Hreiðmarr ignored Loki's warnings about the curse and kept the ring, only to have Fáfnir and Reginn later kill him for it. Fáfnir decided he wanted Andvaranaut for himself, so he turned into a dragon and drove Reginn away. Fáfnir guarded the treasure until Sigurðr, on Reginn's instigation, arrived and delivered a fatal blow to the dragon. Reginn was then also killed by Sigurðr while attempting to murder him for the ring, thus leaving all of Hreiðmarr's family dead.