Starting as the King of Poland, I ended up taking away all of my vassals titles and handing them over to my son. I imprisoned and executed a whole dynasty and my son became the Duke of Lower Poland, Upper Poland, and Silesia. I also gave him the titles to all the counties in those duchies. I didn't get to see him become king though and own all that land.
Are there any benefits if your character owns all counties and duchies directly?
Are there any benefits if your character owns all counties and duchies directly?