Angels-Valkyries

The valkyries were female warrior angels of Norse (Viking) legend
who flew on horseback over the battlefield, choosing which warriors
were to be slain and then carrying them back to Valhalla, the Norse
paradise. The flash of their armor was said to be the cause of the
northern lights (aurora borealis). During their movement from this
world to the next, the valkyries crossed over a rainbow bridge connecting
heaven and earth.
Prior to their role as angels of death, the valkyries of older Norse
mythology originally may have been priestesses of Freyja, queen of
heaven. They were subordinate to the Norns (the Norse Fates) and
originally may have been their assistants. The Norn Skuld (the Fate of
Necessity) often rode with the valkyries.