Roxane
The youngest of Usbek's wives, Roxane is the one he believes is the most loyal to him, and who loves him the most. She is the only wife whom he does not chastise for anything, since he believes her to be innocent and loyal. In reality she hates him and has been cheating on him.
Perspective
When regarded through the eyes of a "less civilized" person from a foreign land, the customs of Paris seem barbaric, strange, and hypocritical.
Religious Devotion
Usbek subtly criticizes and mocks the corruption he sees in the Roman Catholic Church, which appears to him to be irrational because people base their faith on unsubstantiated nonsense. Yet he appeals for wisdom to one of the most respected imams in the world, who offers even more preposterous and irrational nonsense.
Love
Although Usbek is fleeing for his life and has no guarantee that he will safely return, he never makes the slightest effort to arrange for his wives to be brought to him. He writes to them fondly, expecting for their positive feelings toward him to continue, but gives them no reason to hope their situation will improve.
Usbek's Crackdown
Usbek's message to his Chief Eunuch to enforce order among his wives arrives too late. Because of the delay in travel time, the instructions arrive after rebellion has already broken out. The last letters, in which order in the seraglio collapses completely, reveal that the chaos occurred while Usbek was confident that, even from a distance, he was maintaining control.
Foreignness
Usbek and Rica at first regard the Parisian people as strange due to their outlandish customs and habits of dress. Yet it is the novelty of the Persians that ensures they get invited to homes, parties, and all kinds of other places where they meet people they find equally strange. The Parisians are just as intrigued by the Persians as the Persians are by their hosts.