States

States are like countries but inside they, basically vassals, they are the organization of the inside of your country.

States can heavily affect tax income, revolt power and revolt risk, If you have too many states you will have higher revolt risk, but a very good loyalty which will get you high tax income and small revolt power.

A too small amount of states / states with high influence will reduce average loyalty to you, which means your tax income is HEAVILY damaged, with 0 loyalty meaning 50 - 75% of your tax income being thrown into the trash, revolt power will also rise in provinces with states which have high influence, revolt power also affects how strong rebels are in that province, and vice versa where too many states will keep your tax income and revolt power intact but give you more revolt risk (sorry america lol)

A good way to regulate your state's royalty is to keep expanding, which results in many states so = high royalty which means your tax income is safe and revolt power wont rise too much, but the consequence is that your revolt risk will raise from statal fragmentation.

Or you can also spend your totally hard earned political power to regulate each states influence, but most of the time will be a waste but also sometimes helpful.

Now let get to G O V E R N O R S

Governors are the leaders of your states, like your king they also have traits, but with their effects changed.

To replace a governor you need to spend 10 political power, this is used if your governor's trait is like ambitious (which drastically makes his influence bigger and makes your revolt power skyrocket, making rebels in provinces controlled by him more powerful). And sometimes to also regulate loyalty in that state

So to sumarize governors, traits which makes the governors influence skyrocket = bad and need to be replaced, same goes for traits which raise your revolt power in the state.

There are also some special types of states (such as tribe) which give different modifiers to the state, of course which relates to the cultural group over there.

A example is the tribe state, which raises a bit your army size but it is almost unnoticeable but still helps.