Those were all Catholic Churches. There weren’t any other churches until Luther did his thing.
....Dream on. If they were Catholic Churches it would have been evidenced in what Jesus said to the seven Churches. They were each a Church unto themselves as far as their organization, not of course as far as The Spirit and Body of Christ is concerned. Each one answered to The LORD as an individual Church. They obviously did not answer to Rome or Jesus would have given the message to Rome as the authority to pass onto the subjected churches. He gave His messages for the seven Churches to St. John, not a pope. This is so obvious to any thinker who isn't deluded by their own desire to believe something other then revealed truth.
Mormons, Jehovah Witnesses etc. are all thoroughly convinced that their organizations are the only ones. To break from them is exceedingly hard for their adherents. Beware Catholics are also highly convinced of the correctness of their doctrines and organization. Nobody but them is right and one must go to the CC to please God. Thinking it so doesn't make it so. Us who do not belong to the CC are free to go to any Church that we believe adheres to Scripture. We are not glued to one forum. Our faith is in Christ and not in a Church, not even His Church which is His body. Jesus' requirement is that we worship Him in Spirit and Truth, not that we belong to any particular group. We don't have to belong to a particular group because we know we belong to Him and He most definately knows we are His.