Managing your vassals' vassals, often referred to as 'sub-vassals,' is a critical, yet often overlooked, aspect of maintaining a stable and prosperous realm in Crusader Kings III. While your direct vassals owe you allegiance, their own vassals owe allegiance to them. This creates a complex web of loyalties and potential grievances that can destabilize your entire kingdom if not handled with care. oring these sub-vassals can lead to powerful factions forming against you, even if your direct vassals are content.
Understanding the Hierarchy
The first step is to understand the feudal hierarchy. Your direct vassals are typically Dukes or Counts. Their vassals are then Counts or Barons, respectively. Each level of vassalage has its own set of obligations and potential for discontent. A powerful Duke might be loyal to you, but if his own Count vassals are unhappy, they might join a faction against the Duke, which in turn could weaken your position.
Tools for Sub-Vassal Management
Directly interacting with sub-vassals is limited. You cannot directly demand taxes or levies from them, nor can you easily revoke their titles without cause. However, you can influence them indirectly. Firstly, ensure your direct vassals are competent and fair rulers. A good Duke will manage his Counts well, preventing widespread discontent. You can achieve this by granting titles to capable individuals, arranging marriages for your direct vassals to improve their dynasties, and ensuring they have high opinion of you.
Leveraging Vassal Opinion
The opinion of your direct vassals towards you is paramount. If your direct vassals have high opinions, they are less likely to tolerate or join factions that include their own unhappy sub-vassals. Conversely, if your direct vassals are unhappy, they will be more receptive to calls for rebellion, especially if their own vassals are also disgruntled. Use your Chancellor to improve relations with your direct vassals, grant them gifts, and ensure their ambitions are met where possible. Consider using the 'Sway' scheme on powerful sub-vassals if they are causing sificant trouble for your direct vassals, though this is a more direct intervention.
Factionalism and Sub-Vassals
Factions are where the impact of unhappy sub-vassals is most keenly felt. When a faction forms, it often draws strength not just from direct vassals but also from their sub-vassals. A large faction can quickly overwhelm your own forces, leading to civil war. Regularly check the 'Factions' tab to see who is joining and why. If you see a Duke's sub-vassals forming a sificant portion of a faction's strength, it indicates that the Duke is either unable or unwilling to control his own vassals. In such cases, you might need to consider replacing that Duke with someone more capable, or addressing the root causes of the sub-vassals' discontent.