please recommend me a historical novel, female protagonist and lots of character development

what i want :

– little to no romance

– ⁠wants it to inspire me

– ⁠a lot of cultures / world building

– ⁠is written in a way you know the author is genius / trusting the process

– ⁠her being a really good ruler / leader of something at the end

– ⁠i don’t need her to be good at fighting, it’s her way of thinking that’s important to me. the colder and stricter she is the better (as she grow) —like her discipline and her duty to the community(?)

what i do NOT want :

– if possible i really don’t want any drama about her love interest (unless it’s like political, or enemies to lovers with actual bonding not just sexual tension)

– ⁠her crossdrossing as a guy for a long time. or anything about her crossdrossing

p/s please excuse my english