In Norse mythology, Angrboða is the mother of Fenrir, Jörmungandr, and Hel.
Angrboða is a giantess who has a relationship with Loki. Their three children become major figures in the mythology of Ragnarok: Fenrir is the monstrous wolf, Jörmungandr is the Midgard Serpent, and Hel rules the realm of many of the dead.
The gods view these children as dangerous because of prophecies about their future roles. Odin has them taken from their home and deals with each one differently. Fenrir is bound, Jörmungandr is cast into the sea surrounding Midgard, and Hel is sent to preside over the underworld.
Angrboða’s name is commonly translated as “she who offers sorrow” or “the one bringing grief,” although translations vary. She is not Frigg, Odin’s wife, or Skaði, a giantess associated with mountains and winter. Her importance comes chiefly through the powerful children she bears with Loki.