Furcas (Demon)

The demon Furcas appears in the grimoires Book of Incantations, The Discoverie of Witchcraft, Pseudomonarchia Daemonum, and The Lesser Key of Solomon

From The Lesser Key of Solomon, Crowley/Mathers edition:

Furcas

The Fiftieth Spirit is Furcas. He is a Knight, and appeareth in the Form of a Cruel Old Man with a long Beard and a hoary Head, riding upon a pale-coloured Horse, with a Sharp Weapon in his hand. His Office is to teach the Arts of Philosophy, Astrology, Rhetoric, Logic, Cheiromancy, and Pyromancy, in all their parts, and perfectly. He hath under his Power 20 Legions of Spirits. His Seal, or Mark, is thus made, etc.

Timeline of related events

1500

1536

Publication of De praestigiis daemonum (lists this demon)

1600

1700

1800

1810

In this decade: Book of Incantations written (lists this demon)