The other flags look really medieval I guess, so I assumed the world was in that era. As for the Papacy flag, what's the meaning behind the four stripes ? Is it another reference to the four leaf clover ? In addition, black doesn't really feel holy. Maybe that's the intent, but I think gold and white would fit better while keeping the US parallel. Maybe something firey too, to reference the holy fire of the inquisition.
I've read your description for the clover and eyes, but I find the idea that their Jesus got crucified on a clover way too funny.
Your description of the game reminds me a lot of Suzerain. Will all your games take place in this world ?
