Help me add Recruitable Princesses!

Hi!

Please help me modify/write a script to add recruitable princesses to factions (at least the Byzantine Empire)

I've messed with the game files, with the help of chatGPT in campaign_script.txt and export_descr_buildings.txt, but so far no luck. The game crashes 6 seconds when opened. I'm even using a mod called Custom Campaign Mod 2 to do this.

I need help. Just a simple way to add recuitable princesses, like a diplomat agent, (like adding recuitable generals bodyguard to large stone cities, that already has it) so my generals can mary easier.