I am currently playing a Byzantine campaign (very hard, hard, retrofit), but I find it hard to buy provinces from other factions. Before the 1.5 patch, it was easy enoth to buy a province from the Hungarians, but now they get angry (even thogh they are my allie). I have tryed offering other bigger citys, castles and lots of cash, but they will not sell it. Is it becouse its a catholic province and Im othedox or is there another reason?