Furfur

This curiously named demon has an equally curious shape.  According to Wierd's Pseudomonarchia Daemonum, he takes the form of a deer with a tale of flame.  He holds the rank of earl and oversees twenty-six legions of spirits.  He is the thirty-forth demon named in the Goetia.  Furfur is a deceitful demon, and he will lie in all things unless otherwise compelled through the use of magick or divine names.  He can assume a human form if asked to do so, and wwhen he does, he is said to speak with a hoarse voice.  his powers are many and varied.  He can inspire love between a man and woman, and he can answer on matters occult as well as divine.  In addition, he is creditied with the ability to cause thunder, lightning, and tremors.  In the Goetia of Dr. Rudd, he does not create tremors but wild gusts of wind, making him very clearly a demon associated with storms.  This text also claims that the angel Lehahiah has the power to compel and constrain him.  Furfur also appears in Scot's Discoverie of Witchcraft.  In the Welsh Book of Incantations, he is a great and mighty earl with command over twenty-five legions.  He brings love between man and wife and causes violent storms, probably not at the same time.  In the French Livre des esperitz, he holds the rank of count and appears in the form of an angel.  See also BOOK OF INCANTATIONS, GOETIA, LIVRE DES ESPERITZ, RUDD, SCOT, WIERUS.
THE DICTIONARY OF DEMONS, REVISED AND EXPANDED, M. BELANGER (2021)