Not to be contradictory but wasn't the church in Rome founded by one of the actual 11 Disciples? I aware that it was not the only church founded by them they were all over, however the one Peter started in Rome became one of the most important locations due to it's location at such a transportation hub in the ancient world. Is it not the church Paul wrote his letters to that are contained within in the New Testament? Granted it did not have the structure that it grew to have later in those early days. It still has always been the church in Rome.
I am not trying to "fan the flames of discord" at all. Quite the opposite. I am trying to show that our faith, our universal church, all comes from the same roots. Like I've even seen you write here, Jesus started one church.