Who is Zelis from Persian Letters. Translated with an Introd. and Notes, by C. J. Betts and what is their importance?

Zelis is one of Usbek's wives. She is suspected to be the main troublemaker at the seraglio, and according to the head eunuch, she allowed her veil to fall from her face on the way to mosque. Usbek also suspects that a letter found in the seraglio to one of his wives was intended for Zelis, and he commands the servants to watch her like a lynx. In a letter to her husband, Zelis tells Usbek that he is cruel and tyrannical for commanding the guards to punish the women as they see fit. She adds that as a result, she is unable to love him because of the punishment she is receiving.