Agnarr Geirröðsson

Agnarr is presented in the surviving tradition as the son and heir of King Geirröðr (Geirröðsson indicates his patronymic). He is named in the sources after an uncle also called Agnarr, who had earlier been betrayed by Geirröðr and set adrift; in Grímnismál Agnarr aids a visitor (Odin in disguise as Grímnir), and when Odin reveals himself the king dies by falling on his own sword, leaving Agnarr as his successor. He is solely attested in the poem Grímnismál in the Poetic Edda, compiled in the 13th century from earlier material.

The extant sources provide no physical description of Agnarr: Grímnismál and the summarized accounts do not record his clothing, stature, age, or distinguishing marks. Knowledge of Agnarr rests on his actions in the poem rather than on descriptive material.

No supernatural powers or magical abilities are ascribed to Agnarr in the cited sources. His significance in the narrative is moral and practical: he assists Odin (disguised as Grímnir) to escape Geirröðr's torture and, as a result of the episode in which Odin reveals himself and the king dies, Agnarr inherits the kingship. His role is that of a mortal heir and helper rather than a supernatural actor.