Hanbi
Hanbi, Hanbu or Hanpa (as it is more commonly known in Western texts) is, in Sumerian mythology, Akkadian or Mesopotamia in general, a god of evil, king of all evil spirits, and father of Pazuzu and Humbaba. He is believed to have been a creation of the god An/Anu.
It appears in an inscription on the back of a Neo-Assyrian statuette of Pazuzu, now in the Louvre Museum: "I am Pazuzu, son of Hanpa and king of the evil spirits of the air who rise violently from the mountains, causing many misfortunes".
He may have been the inspiration for other evil deities in ancient Near Eastern religions, such as Apophis in Egyptian mythology, Angra Mainyu in Zoroastrianism, and another form of Satan in Abrahamic religions. Also popular Christian belief considers Hanbi the brother of Archangel Michael.