Zagan (Demon)

The demon Zagan appears in the grimoires Book of Incantations, The Discoverie of Witchcraft, The Book of Spirits, The Book of the Office of Spirits, The Book of Oberon, Pseudomonarchia Daemonum, and The Lesser Key of Solomon

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

Zagan

THE Sixty-first Spirit is Zagan. He is a Great King and President, appearing at first in the Form of a Bull with Gryphon's Wings; but after a while he putteth on Human Shape. He maketh Men Witty. He can turn Wine into Water, and Blood into Wine. He can turn all Metals into Coin of the Domninion that Metal is of. He can even make Fools Wise. He governeth 33 Legions of Spirits, and his Seal is this, etc.

Timeline of related events

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1700

1800

1810

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