"Some women among the people of the North are very proficient in magical skills. The picture, in which a woman is seen pouring out the contents of a cauldron to sink ships, shows that all witches use this kind of utensil…As for the power witches have to darken the moon's beams, raise tempests, uproot trees and plants, and enfeeble cattle and horses, I let these matters alone, well known as they are to everyone…"
From Olaus Magnus.