Hreidmar is a master magician, Hreidmar has three sons Regin, Fafnir and Otr, and two daughters Lofnheid and Lyndheid. Hreidmar owned a house of glittering gold and flashing gems built by Regin and guarded by Fafnir. After Otr was accidentally killed by Loki, the Asir repaid Hreidmar with the cursed ring Andvarinaut, plus the gold made by the ring. Fafnir and Regin killed their father for the cursed ring Andvarinaut. Fafnir decided that he wanted the ring for himself, so he turned into a dragon and scared Regin away. Lynheid is the daughter of Hreidmar, she has a sister named Lofnheid and three brothers, Fafnir, Reid, and Otr.