Valkyries

Valkyries (translated from old Norse: valkyrja, "Chooser of the Slain") are the loyal servants of the gods Odin and Freyja. They take form of female figures who are the ones that decide which soldiers live and die in battle. Those who are fallen, are taken up to Valhalla by the Valkyries.

Season 1
Valkyries are seen coming down from the sky by Ragnar in Rites of Passage and taking some of the fallen up to Valhalla. They appear alongside Odin and his Crows.