Nomad Sturgia gained a castle abroad this is what they do
Sturgia got into some trouble and lost all its fiefs. Then somehow convinced an Empire clan to flip so we now have Oristicorys castle, which is honestly a great defensible one.
I'm angry at the Empire so am out with big Khuzait party capturing and beheading Empire nobles until they collapse.
Sturgia, on the other hand, are just chanting together in the castle.
The game, apparently, doesn't know what to do with so many nobles together. 😂