Very true. Like some sort of advanced government that obviously states that a client ruler is in residence (in the description and in the name) without having to have a guy with a bodyguard unit actually take up valuable progeny space. Then a a couple of traits to appear for roleplaying purposes for any actual family member staying in the province with said advanced government is present like: "Friends with Client Ruler", "In conflict with client ruler", "patron of client ruler", or even "lover of client ruler" (hey ceasar and the bithynians - or some other asia minor princeling), and so on and so on.