In the Poetic Edda the tale of Baldr’s death is referred to rather than recounted at length. Among the visions which the Völva sees and describes in the prophecy known as the Völuspá is one of the fatal mistletoe, the birth of Váli and the weeping of Frigg (stanzas 31-33). Yet looking far into the future the Völva sees a brighter vision of a new world, when both Höðr and Baldr will come back (stanza 62). The Eddic poem Baldr’s Dreams mentions that Baldr has bad dreams which the gods then discuss. Odin rides to Hel and awakens a seeress, who tells him Höðr will kill Baldr but Vali will avenge him (stanzas 9, 11).
In Gylfaginning, Baldur is described as follows:
Apart from this description Baldr is known primarily for the story of his death. His death is seen as the first in the chain of events which will ultimately lead to the destruction of the gods at Ragnarök. Baldr will be reborn in the new world, according to Völuspá.
He had a dream of his own death and his mother had the same dreams. Since dreams were usually prophetic, this depressed him, so his mother Frigg made every object in every realm vow never to hurt Baldr. All objects made this vow except mistletoe. Frigg had thought it too young to swear—a detail which has traditionally been explained with the idea that it was too unimportant and unthreatening to bother asking it to make the vow, but which Merrill Kaplan has instead argued echoes the fact that young people were not eligible to swear legal oaths, which could make them a threat later in life.
When Loki, the mischief-maker, heard of this, he made a magical spear from this plant (in some later versions, an arrow). He hurried to the place where the gods were indulging in their new pastime of hurling objects at Baldr, which would bounce off without harming him. Loki gave the spear to Baldr’s brother, the blind god Höðr, who then inadvertently killed his brother with it (other versions suggest that Loki guided the arrow himself). For this act, Odin and the giantess Rindr gave birth to Váli who grew to adulthood within a day and slew Höðr.
Baldr was ceremonially burnt upon his ship, Hringhorni, the largest of all ships. As he was carried to the ship, Odin whispered in his ear. The question of what he said was to be a key riddle asked by Odin (in disguise) of the giant Vafthrudnir (and which was, of course, unanswerable) in the poem Vafthrudnismal. The riddle also appears in the riddles of Gestumblindi in Hervarar saga.
The dwarf Litr was kicked by Thor into the funeral fire and burnt alive. Nanna, Baldr’s wife, also threw herself on the funeral fire to await Ragnarök when she would be reunited with her husband (alternatively, she died of grief). Baldr’s horse with all its trappings was also burned on the pyre. The ship was set to sea by Hyrrokin, a giantess, who came riding on a wolf and gave the ship such a push that fire flashed from the rollers and all the earth shook.
Upon Frigg’s entreaties, delivered through the messenger Hermod, Hel promised to release Baldr from the underworld if all objects alive and dead would weep for him. All did, except a giantess, Þökk often presumed to be the god Loki in disguise, who refused to mourn the slain god. Thus Baldr had to remain in the underworld, not to emerge until after Ragnarök, when he and his brother Höðr would be reconciled and rule the new earth together with Thor’s sons. Alternately, Loki cast a spell upon the Willow tree, which was once tall and proud. This spell prevented the tree from weeping for Baldr the Beautiful. Since the tree was unable to weep for the fallen son of Odin, he remained in the underworld. Released from the spell of Loki, the willow tree bowed in its grief and was bound to weep eternally.
Writing at about the end of the 12th century, the Danish historian Saxo Grammaticus tells the story of Baldr (recorded as Balderus) in a form which professes to be historical. According to him, Balderus and Høtherus were rival suitors for the hand of Nanna, daughter of Gewar, King of Norway. Balderus was a demigod and common steel could not wound his sacred body. The two rivals encountered each other in a terrific battle. Though Odin and Thor and the rest of the gods fought for Balderus, he was defeated and fled away, and Høtherus married the princess.
Nevertheless, Balderus took heart of grace and again met Høtherus in a stricken field. But he fared even worse than before. Høtherus dealt him a deadly wound with a magic sword, named Mistletoe, which he had received from Miming, the satyr of the woods; after lingering three days in pain Balderus died of his injury and was buried with royal honours in a barrow.