One more thing.. I have 4 sons/princes. And one of them has low loyalty, he has like 3 loyalty banners or something. Should I worry about low loyalty people or what ??

And I've bild a border fort. One time a priest or something came into my province, and I right clicked him. It stood: spying.
What can I do with sneaky guys like that ?

How can I send a princess to another country ? I have 3 daughters and they are rottning away. I tryed to go to France, but she couldn't go all the way, when I tryed to drop her on a province she was like beamed back to Denmark.