The tiers are as follows from lowest to highest, with their respective portrait and coat of arms frames: A baron/baroness owns a holding (also called a Barony ), the smallest land unit in the game. Rulers can only be vassals to a single higher-tier liege. Negative opinion: -20 at -20 opinion, etc Over Vassal Limit: a percentage depending. How many vassals can you have in Crusader Kings 2? Next, you can increase the tax law to make your vassals pay more. If your liege emperor holds a kingdom, shifting duchies from that kingdom to your own weakens the emperor as well. Occupy whole duchies and allow them to assimilate into your kingdom. As a vassal king under an empire, you gain access to a unique mechanic: de jure shift. Your vassal must at least have the title of a Count (realm size of at least one) in order to count against your vassal limit. What happens when you play as a vassal king? Vassals are individuals you appoint to help you run your kingdom since you can only personally handle a limited number of holdings (20 at the start of the game). Certain vassals who held their fiefs directly from the crown were tenants in chief and formed the most important feudal group, the barons. Some vassals did not have fiefs and lived at their lord’s court as his household knights. Vassal, in feudal society, one invested with a fief in return for services to an overlord.