Some of the early Roman bishops, such as Leo I, denied that Mary was immaculately conceived. The earliest generations of Roman Christians were not Roman Catholics so what... was leo a pope, did he proclaim that as a matter of faith and morals>??? if not, it is irrelevant.
if the early Roman Christians weren't Catholic...what were they, There was nothing else.....real old Lutherans???
if the early Roman Christians weren't Catholic...what were they, There was nothing else.....real old Lutherans??? Acts 11:25-26 25 So Barnabas went to Tarsus to look for Saul, 26 and when he had found him, he brought him to Antioch. For a whole year they met with the church and taught a great many people. And in Antioch the disciples were first called Christians.