Its surprising then why the sister couldn't take the same route/approach. Sans marriage.Tish and Ruksana don't settle down.
Even if you marry them they still do their own thing.
Ruksana takes over the Orcs and comes to visit and Tish goes back to being a Jannisary unless you are king and then she sticks around.
I guess Meredith got the most traditional marriage then? She kinda looks like the type, at least when not corrupted?