Forneus

Forneus - before he fell, Forneus was of the order of thrones and partly also the order of angels.  In the underworld he is a great marquis, with 29 legions of infernal spirits ready to carry out his commands.  In addition to teaching art, rhetoric, and all languages, he causes men to be loved by their enemies.  the sigil of Forneus is shown in Waite, The Book of Black Magic and of Pacts, p. 174.  It is said that, when he is invoked, Forneus manifests in the form of a sea monster.  (a)

Forneus is a great marquesse, like unto a monster of the sea, he maketh men woondeffull in rhetorike, he adorneth a man with a good name, and the knowledge of toongs, and maketh one beloved as well of foes as freends: there are under him nine and twentie legions, of the order partlie of thrones, and partlie of angels. (g)

FORNEUS. - The Thirtieth Spirit is Forneus. He is a Mighty and Great Marquis, and appeareth in the Form of a Great Sea-Monster. He teacheth, and maketh men wonderfully knowing in the Art of Rhetoric. He causeth men to have a Good Name, and to have the knowledge and understanding of Tongues. He maketh one to be beloved of his Foes as well as of his Friends. He governeth 29 Legions of Spirits, partly of the Order of Thrones, and partly of that of Angels. His Seal is this, which wear thou, etc. (h)

Resource List - all entries are taken verbatim from the original source:

(h) The Lesser Key of Solomon.  GOETIA.  Compiled and Translated By S.L. " MacGregor" Mathers.  Editing and Additional Material By Aleister Crowley

(g) Pseudomonarchia daemonum - Johann Wier (1583)

(a) "The Dictionary of Angels" by Gustav Davidson, © 1967