Simply tell your Chancellor to sit in a neighbouring province and he’ll have a percentage chance over time to generate you a claim. In my original guide, How to Get Married and Go to War I briefly touched on the ability to fabricate claims on your neighbours. Understanding the theory and practice behind earning a CB will ensure that you never have to be at peace for long. What I’m going to be focusing on instead is how you actually go about earning these CBs. If that’s the information you’re looking for, take a look at the Casus Belli section of the CK2 Wiki.

Far too many for me to go through them and explain what they all do. Although it might not seem like it when you start as a Catholic ruler, there are a lot of Casus Bellis (CBs) in Crusader Kings 2.