I'm playing as England in ACGEEP Grand Campaign. I conquered France and Dauphine in the HYW, so now I am a super power. I didn't convert to Protestant right away after the Reformation, but once most of England's provinces became Protestant, I converted. Well, after spending huge sums of money on missionaries, I had converted all of England, as well as about 1/5 of France to Protestant, when Calvin pops up. Suddenly, over half of my Protestant provinces (including many I spend hundreds of ducats on to make Protestant) converted to Reformed. This is really frustrating. Is there any way to limit the spread of Calvinism in my Empire? At the very least, is there a way to stop my Protestant provinces from going Calvinist?