I didn't really want to get into reputation in this thread, but once I improved my reputation to very reliable AND gifted then most factions took peace, in fact I neutered the mongols with a 10k gift , they declare war and next turn always happily accept peace. My relations are perfect with them. If I can figure how to post a screen shot I'll post that one. At present I have 40 provinces, at war only with rebels, and turks and milan both as vassals (as Venice- L to C 2.1 mod)