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In demonology, and according to Johann Weyer and his Pseudomonarchia Daemonum, Pruflas is a Great Prince and Duke of Hell that has twenty-six legions of demons under his command. He causes men to commit quarrels, discord, and falsehood, and should be never admitted into any place, but if conjured, he gives truthful, generous answers to the conjurer's questions.
He is depicted as a flame outside the Tower of Babel, where he used to reside, and sometimes his head is seen as that of a hawk.
Other spelling: Pruslas, Bufas.