Forneus

According to the writings in The Lesser Key of Solomon, Forneus is the thirtieth spirit listed in the Goetia.

He is a Great Marquis of Hell with twenty-nine legions under his command, partly comprised of the order of Angels and Thrones, and appears as a sea monster. When summoned, he can make men well-versed in rhetoric, give him a good name, teach him foreign tongues, and make him trusted by friend and foe alike.