Integrate Title Contract For Free

If multiple empire titles are held they will all be merged into the Mongol Empire title that will gain all their de jure territory.

In general, a title will be assimilated after being controlled for 100 years. The duration required for assimilation is decreased by the Chancellor task "Integrate Title". Every duchy in the game is considered to be part of a specific de jure kingdom.

As an Emperor you would need the Kingdom (all de jure land) under your full control for it to start to de jure drift into your empire, kingdoms bordering your de jure Empire will start to drift, usually takes 100 years without setting your chancellor to speed it up.

De Jure literally "By law" in latin. If you own a County (so game-wise a lesser title) within that Duchy that I'm by law (de jure) the owner, I have the right to request you to be my vassal.

The description for the warning says that a king or an emperor is not allowed to hold more than two Duchies. Every duchy over two will lower the opinion of all your vassals in CK3. Each duchy will lose the opinion of your vassals by 15.

There are a couple of things you should do to keep your kingdom together in CK3: Change Succession Law. Give Lands to Eligible Heirs. Kill or Disinherit Eligible Heirs. Take a Vow of Celibacy. Get a higher-tier Title.

When you are going to war in CK3 and you conquer a duchy that is part of a kingdom, slowly over the process of 100 years will pieces close to the conquered duchy of that kingdom begin to incorporate themselves into your kingdom and become yours de jure.

Have only one type of your highest title. If you highest title is a county and you have multiple of them then yeah, you're going to lose them in the succession. However, if your highest title is a duchy, make sure you only have one duchy title.

Then so long as all the laws of both titles were identical, the holder would gain an "integrate titles" decision that if pressed would instantly make all the de jure land of the merged title de jure to one's primary title.

It is not possible for counties to de jure drift, and so our above example would not see Dorset shift away from the de jure duchy of Wessex. However, duchies can de jure drift from one kingdom to another, as can kingdoms de jure drift from one empire to another.