Here's the thing, I'm writing in a middle ages style fantasy world and have four kingdoms in said world. Each kingdom is divided up into.....well one of the topic title things. Each area has its own laws and sometimes culture, trade between them usually still requires treaties, agreements and such. The queen still rules over the kingdom but allows each their own laws due to each area knowing how to take advantage of their area's opportunities and such. What would these be called precisely? The areas wouldn't necessarily have a governor. One of the reasons I'm going with this as well (to help explain my objective) is because some areas have a zero tolerance policy for anything that isn't human (pretty much any other sentient race) while others have precious commodities that play a (minor) part in the story that they even refuse to sell to other areas and have even managed to make it a law for it to be illegal to be in possession of such commodity outside that area.