Issue - not possible to arrange marriage

[Lorekeeper88]

Looking for help regarding this situation I first encountered.
My new empress did not live in my court because her husband (matri-marriage) was adventurous and tried to press his claim. He failed and the ruler he tried to usurp banished him to some county in Byzantium. Along the way to his war, he acquired the Zealous trait and so he refused to return to my court.
http://steamcommunity.com/sharedfiles/filedetails/?id=645389078
All her children are Basque Catholics so they have nothing in common with the father, but for some reason the game counts them as belonging to his court. It can be seen on the second screenshot.
http://steamcommunity.com/sharedfiles/filedetails/?id=645394239
She follows her father who is my spymaster, and for some reason I can't even offer marriage with a single man from my court, as i cannot click on the offer button when i communicate with the father.

 

[Aardvark Bellay]

There is bug with (failed) hosts/adventurers that your report probably fits. Yup.

IF it's not Ironman you could use the console (move <char_id>) to get her to your court...or get him, then everyone "in his court" would probably end up in yours too.
Maybe.

 

[Lorekeeper88]

Unfortunately it is Ironman, I'm hunting the 3 empresses achievement which I will probably get, but won't have any heirs.

 

[brifbates]

Kill the adventurer and your daughter (+ children) should either return or, at the very least, become open to invitation.

 

[Lorekeeper88]

Kill the adventurer and your daughter (+ children) should either return or, at the very least, become open to invitation.

That was my first idea, unfortunately he has intrigue 26 and no one wants to kill him.