The size of the demesne is determined by the highest title your current ruler has (which is multiplicative factor in demesne size, for instance a Kingdom title gives you x0.4 more demesne you can control), and his intrigue rating.Ī higher title and better intrigue naturally equal a bigger demesne size, but keep in mind that in war the more provinces you directly have under your control, the more territory an enemy can occupy and pillage. A demesne is the term used for the land that the dynasty you play in Crusader Kings directly control.