maybe the conquered province shouldnt be given to the king obligatory...

More a kind of unwritten tradition. Another tradition is the handing back of the province by the king.

So, a duke may not give the city to the king. The king may now force the surrounding dukes upon this renegade and put pressure.

or a duke hands over the city, but the king just gives it to another house. The conquering house is pissed, and will not hand over the next conquered city, and will plot some kind of revenge against both king and the other house who got th city by buttkissing with the king.


Could lead to various interesting plots, intrigues and civil wars :p