Asmodeus (supposedly meaning "creature of judgment") was a
Persian demon who was incorporated into
Jewish folklore[?]. He is featured prominently in the
Book of Tobit, where he is defeated by
Tobias[?], a pious
Jew who was under the protection of the archangel
Raphael[?].
Asmodeus is the name by which he is mostly known in the translations of the Book of Tobit. For more information about this demon see also Asmodai.