How can I rename my cities?

I've been playing my first game of FE for some hours now and starting to get the feel of the game, including a warm fuzzy feeling concerning my very own mighty realm. However, to increase this immersion, I want to rethink the events in my realm (that happened while I was busy understanding the nitty-gritty mechanics of the game for the first 200 turns) in relation to some backstory I've thought up, and an important factor in this is city-naming. I've tried for at least half an hour now clicking, richt clicking, middle clicking and going through every conceivable GUI to see whether I can rename my cities, and then I started sifting though the actual files of the game/savegame to see what could be changed there.....but I give up. If I've missed some painfully obvious and, therefore according to Murphy, impossible to find solution to this, then you may colour me silly, but please tell me and receive my eternal gratitude......otherwise, please implement this for us immersion-junkies; thanks!