what exactly does "wrong type of holding" mean? in my ireland game, the duchy of munster is a republic for some reason (it may have started the game that way, but i don't think so) and the doge rebels fairly often no matter who i install after. after each war, i take over and get a wrong type of holding message, which i guess i receive because i'm a king holding a republic, but how do i revert munster back to a normal duchy? and how bad is it to have a wrong kind of holding in my demense?
A doge is a duke with a city as his primary holding. One of the counties in Ireland does start as a grand city. What you can do to revert it to a feudal duchy is:
A: Revoke the title of the county's baron, if there is one. You will incur a -20 revoked title malus to the opinion of all your vassals, but the capital will shift to the barony, and you can give away the city. You will then personally hold the county as a regular feudal one, and can give it away if you'd like.
B: Construct a new castle holding. This will make you baron of said holding, which will become capital, and everything else is the same as option A. Note that constructing new holdings is HIGHLY expensive.
C: Give the county title to the local baron. He will become count, and the barony will become his capital. He will also hold the city, but will likely give it away.
Option C is the best, in my opinion. Hope this helps!