So I was playing as the Byzantine Empire and I managed to press my claim on Kiev which at that time still had control of much of Rus. My plan was to give the title to my brother as a Viceroyalty. He got the vassals in dejure Kiev but I found I had no way of transferring the vassalage of the other Russians to him.
Why can't I transfer the vassalage of the other Russians to him? The only vassals that it lets me transfer are the Varangian Guard and the Republic of Ragusa.
Why can't I transfer the vassalage of the other Russians to him? The only vassals that it lets me transfer are the Varangian Guard and the Republic of Ragusa.