No Duplicate Custom Kingdoms
This is a fix for my petty annoyance (there are many like it but this one is mine) with the otherwise cool Custom Kingdom and Empire feature (originally from CK2’s Charlemagne DLC and brought to the base game in CK3) where you could end up with two entirely distinct de jure titles with the same name, where one was originally in the game and one was formed by the decision from a primary title with the same name as its de jure superior.
How this works is simple: you can no longer take the Found Custom Kingdom/Empire decision if your primary title as a Duke/King is one of a list of duchies/kingdoms that would cause this problem, unless you hold all of the duchies/kingdoms that would be in the existing de jure kingdom/empire (since that would mean all those titles would move to your new title and the old one could no longer be formed).
Obviously if you qualify for this exception you could have just formed the original de jure title instead but, I dunno, maybe you prefer the different colour or CoA. No judgment here!
Compatibility notes:
-This mod overrides the found_custom_kingdom and found_custom_empire decisions.
It will not be compatible with anything that affects any of these items or overwrites the vanilla files they came from.
-This mod uses selective overrides, so it should be compatible with anything that doesn’t affect any of the above.
-In particular, it is compatible with all my other CK3 mods. They will always remain separate, because I was a coder on the CK2+ dev team for four years and this has left me with a violent allergic reaction to the phrase "overhaul mod".
Revisions:
Old revisions of this mod are available below. Click the link to download.
