Balder

Baldr (also Baldur or Balder in other versions) was the Norse Aesir god of light and purity, and the beloved son of Odin. He was eventually killed the by the trickster god Loki.

The Sword of Summer
Baldr is mentioned by Loki, when the latter grieves about the fate that his sons Vali and Narfi suffered as part of his punishment for killing Odin's beloved son.