Gusion (Demon)

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

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

Gusion

The Eleventh Spirit in order is a great and strong Duke, called Gusion. He appeareth like a Xenopilus. He telleth all things, Past, Present and to Come, and showeth the meaning and resolution of all questions thou mayest ask. He conciliateth and reconcileth friendships, and giveth Honour and Dignity unto any. He ruleth over 40 Legions of Spirits. His Seal is this, the which wear as aforesaid.

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)

1821

Publication of the Grand Grimoire (lists this demon)