Quote Originally Posted by Bramborough View Post
I've done a couple of diplomatic marriages. In one case, had to do it this way because my FL had no political actions due to the bug which was subject of my OP. As far as I can tell, the foreigner bride doesn't have family influence and is therefore politically inert. I assumed it was supposed to be this way since they were foreign...might I have run into a bug there as well and not have realized it?

This lack of influence is why I haven't pursued diplomatic marriages more often for my own male characters. The reverse, however, doesn't seem to be the case; if I marry off a daughter or niece or whatever to some other faction, she still stays in the family tree and retains useable influence and actions.
Hmm, my foreign wives accumulate a ton of influence. Actually, some arrive with a bundle to start with. You might have hit some bug wall there. Any mods?