In Norse mythology, a Valkyrie is one of a host of female figures who decide who will die in battle. Selecting among those who die in battle, the Valkyries bring their chosen to the afterlife hall of the slain, Valhalla, ruled over by the God Odin.
The Noble Houses of Westeros: ☼ House Arryn ☼ House Baratheon ☼ House Greyjoy ☼ House Lannister ☼ House Martell ☼ House Stark ☼ House Targaryen ☼ House Tully ☼ House Tyrell ☼ From the "A Song of Ice and Fire" series. ≈Game of Thrones≈
Ragnar Lodbrok from the Viking TV Show with a raven on his shoulder. According to Viking mythology, Odin would often appear as a raven. Ragnar Lodbrok claimed to be descended from Odin and many Vikings believed this.