Appanage suggestion

[muted lintel]

Appanage was an important phenomenon on the royal domains of realms in the late Middle Ages. In an appanage, the monarch grants fiefs to their younger sons (historical) which normally would not inherit any titles under primogeniture succession. Appanage lands remain part of the royal domain and would revert back to the crown upon the extinction of the princely line. More or less, it increased the power of the realm and the dynasty. Appanage was observed throughout the feudal world, from France and England to Russia, Mongolia, India and China.

That being said, Appanage has a formidable place in the CK3 universe. Here are my suggestions for the Appanage mechanism:

Conditions for the availability of the Grant Appanage interaction:

• Has Primogeniture Innovation
• Is not the Primary Heir
• Is not a Child
• Is not a Bastard
• Is not Disinherited

Immediate effects:
Positive effects

• Increase the Domain Limit by 1 per appanage holding granted:
• 1 for Autonomous Vassals
• Up to 3 for Low Crown Authority
• Up to 6 for High Crown Authority
• Up to 10 for Absolute Crown Authority
• Appanage princes (or juveigneur in French)
• Can call and be called to war (no alliance needed)
• Cannot form any alliances, unless they are a Powerful Vassal

Negative effects

• Juveigneurs, especially ones with the Glory Hound trait, are more likely to claim a higher title that you own, especially if you have fraught relations with them
• If the juveigneur is a Powerful Vassal, they can ally with other realms (historical precedent: Dukes of Burgundy allying with England in the Hundred Years' War)

Other effects

• Appanage land:
• Cannot pass into other realms, as it is unalienable
• Is shown on the map as part of the royal domain
• Reverts back to the crown upon the extinction of the line (no heir)

The Revoke Title interaction is also applicable on appanage titles.

Source: https://en.wikipedia.org/wiki/Appanage

[muted lintel]

With this mechanic, the player could handily use Grant Appanage to increase the Domain Limit following i.e. conquest of new lands.

[willow horizon]

I fail to see how tangibly different an IRL appanage is to the currently present in-game option of just Granting Titles to your kids.

[muted lintel]

Granting titles to your kids in-game reduces your royal domain and power, which was often not the case for IRL appanage.

[languid sun]

Thanks for your suggestion, we'll pass this on to the devs! Of course we can't make any promises but will be sure to forward it on 😄

[muted lintel]

Bumping this thread, as appanage could be a fitting new mechanic for Western Europe, Russia, India, Mongolia and China. (Relevant to Chapter IV, I guess)