Artes prohibitae

While the term "nigromancy" broadly construed includes the six associated divinatory practices, it more specifically refers to the demonic magic of the Late Middle Ages.

Marco Mattei of Gesso and friar Jacopo of Viterbo confessed to taking part in magical practices.

It is a form of divination in which any question may be answered by casting sand, stone, or dirt on the ground and reading the shapes, using tables of geomantic figures for interpretation.

Hydromancy originated from Babylonia and was popular during Byzantine times whereas in medieval Europe, it was associated with witchcraft.

There are many variations of pyromancy depending on the material thrown into a fire and it is thought to be used for sacrifices to the gods and that the deity is present within the flames with priests interpreting the omens conveyed.