Baldur

Baldr (also Balder, Baldur) is a god in Norse mythology.

In the 12th century, Danish accounts by Saxo Grammaticus and other Danish Latin chroniclers recorded a euhemerized account of his story. Compiled in Iceland in the 13th century, but based on much older Old Norse poetry, the Poetic Edda and the Prose Edda contain numerous references to the death of Baldr.

His death is seen as the first in the chain of events which will ultimately lead to the destruction of the gods at Ragnarok. Baldr will be reborn in the new world. 

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 on earth vow never to hurt Baldr. All objects made this vow except mistletoe. Frigg had thought it too unimportant and nonthreatening to bother asking it to make the vow (alternatively, it seemed too young to swear).

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 Höor, who then inadvertently killed his brother with it (other versions suggest that Loki guided the arrow himself).