Asuriel: A duke of the infernal prince Usiel who serves his master by night. Asuriel has twenty ministering spirits at his command, and according to the Ars Theurgia, he has the power to hide treasure from thieves through the use of charms and enchantments. He can also reveal items hidden through these same means. Through his association with Usiel, he is tied to the court of the west.
SOURCE:
The Dictionary of Demons written by Michelle Belanger