A witchcraft trial held in 1324 in Bergen, Norway, records a spell used by the accused Ragnhild Tregagás:
I send out from me the spirits of (the valkyrie) Gondul.
May the first bite you in the back.
May the second bite you in the breast.
May the third turn hate and envy upon you pic.twitter.com/yppqvL8osJ
— Vikingverse (@vikingverse) February 9, 2018