Variations on the princess:
Princess (My family are classic hereditary aristocrats and I'm either in charge in general or leaning hard on my parents' authority, depending on what works better. If you don't show me your tits you're going to the dungeon.)
Divine Princess (this monarchy leans hard on the religious role of the monarch and so you either have to worship me or at least look to me for religious guidance also. If you don't show me your tits that's blasphemy, and you're going to the dungeon.)
War Princess (this monarchy leans hard on the warrior-aristocrat thing. I will be wearing uniforms and armor quite often. I also have a dungeon but if you don't show me your tits I'm probably gonna come over there and do something about it myself, lest I lose face.)
Lady of the House (My family is just rich. Can be early capitalists or more of a medieval/early modern merchant thing. It's probably illegal for me to falsely claim to be a princess so don't do that. If you don't show me your tits you're ending up on the street and/or going to the scary room in the basement.)
Citizen Princess (it's kind of an ancient Mediterranean city-state situation. My family is prominent citizens (which if the city leans more oligarchal are basically nobility) and my maids are. Well. They're probably slaves. So when I tell them to show me their tits it's gonna happen.)