compwiz1202
King
I don't believe thats correct, at least before industrial era. If they pop another great prophet from their religion,it will be their original religion. They can then use this to reconvert some cities. After the industrial era, when you must buy the prophets I am not sure as I have never tried it. I know that missionaries will be the same religion as the major religion in the city, not sure if the same is true about the prophets.
Same for me. I know the Great Prophet is always the civ's founded religion when it is born pre-Industrial but also have never tested buying one in Industrial in a foreign religion city.