Charsiel: A demon named in the Ars Theurgia. Charsiel serves in the hierarchy of Menadiel, a so-called wandering prince of the air who moves from place to place with his massive retinue. Charsiel himself oversees a total of three hundred and ninety lesser spirits. He is also bound to the demon Curasin, who functions as his companion. Where Charsiel goes, Curasin follows after. Accordingly, Charsiel may only appear during the ninth hour of the day, and Curasin appears only in the tenth.
SOURCE:
The Dictionary of Demons written by Michelle Belanger