Vassago

thumb Vassago (also Vasago, Usagoo) is a demon described in demonological grimoires such as the Lesser Key of Solomon and the Book of the Office of Spirits.

== Lesser Key of Solomon == He is the third demon in the Lesser Key (including Thomas Rudd's variant) and is referred to as a prince "of a good nature" and of the "same nature as Agares". He rules twenty-six legions of spirits, and is summoned to tell magicians of past and future events, and locate lost objects. He is one of the few spirits found in the Lesser Key of Solomon but not in Johann Weyer's Pseudomonarchia Daemonum.