Is there any way to get this source of unhappiness to go away without destroying the civ? I've found even if I raze the AI's city and put a new city down in a nearby location I still get this message. Even if the AI only had a city there for 10 turns before I razed it, my new city will have this message for the rest of the game with +1-5 unhappiness unless I completely destroy the civ that once had a city there. I think that's a bit absurd. There must be a way to get rid of it without destroying the AI civ...