In demonology, according to some authors, Agares (or Agreas) is a Duke (or Grand Duke), ruling the eastern zone of Hell, and being served by 31 legions of demons.
He can make runaways come back, and those who stand still run. He can also cause earthquakes and teaches languages, finding pleasure in teaching immoral expressions. He also has the power to destroy dignities, both temporal and supernatural.
He is depicted as a pale old man riding a crocodile and with a hawk on his fist.