In a recent game I had rolled over Hiawatha, leaving him with only 2 cities. I had his former capitol/holyCity, which was already converted to my religion. Every city on our continent was either my religion majority, or no majority. Then a GP for his old religion pops up and converts his former capitol back. What I don't understand is where this GP came from? Can a player make a GP for their founded religion even if there are no cities with that religion as a majority?