Alocer

Alocer (also: Allocen, Allocer, Alloces, Alloien or Alocas) is a grand duke of the underworld who teaches the secrets of astronomy and the liberal arts. He is depicted as a knight with glowing eyes on a horse and has 36 legions under his command. (Source: The Children of Lucifer )

In the Ars Goetia he is described as the Duke of Heavenly Angels who teaches astronomy and general science.

According to the Demonolatry List , he is a great Duke of Hell and one of the 72 Spirits of Solomon .