
Originally Posted by
QuintusSertorius
You've misunderstood what the buildings do. Pacificatio Regionis is a <em>precursor </em>to your factional government buildings, not a final government. Once it's built, you should be upgrading it to one of your more advanced government buildings. It has a pretty hefty happiness penalty, which is what you were observing. Mediolanum is a Celtic province, there are no government options there until it's a large town at least, and then only a Provincia. You might be better off with an Allied Government until it grows.