Quote Originally Posted by SoulGamesInc View Post
Princesses count as Agents, and there is an Agent limit depending on the number of Towns/City's you control. (I think that's what effects it) So if a Princess comes of age when you have no space for her, she will remain in the Family Tree and the game will pop-up with random marriage requests for her now and again. There is no way to move a Princess from the Family Tree onto the Campaign map once shes there, this is another Medieval 2 thing.

I could be missing some info on the hole Agent Limit thing, look it up on Google lol...
Actually, the only princesses that can move on the map are the daughters of your faction leader and faction heir (and the ones pre-placed on the map)