"Sola Mia Papa" - The Fruit of the Reformation
Here is an excellent review of the historical and scriptural evidence for the papacy and its location in Rome, Italy. Since the reformation, people have attempted to downplay the role of the papacy and the geographical city of Rome as the locus centrali of Christendom. Why? Because if there is no proof that Rome was the original location and seat of the "thing" called a papacy, you can then attempt to dismantle the belief that Christ instituted a physical, visible Church that happened to develop its locus in the center of the ancient world and remain there for 2000 years. (give or take a few decades when the papacy moved to Avignon)
If there is no location for a papacy, then, maybe there was no papacy, and without a papacy..... one can become their own pope to fill the vacuum, which is essentially the ultimate consequence of the reformation. The ultimate fruit of Luther's new construct "Sola scriptura" was the support and development of the doctrine of "Sola Mi Papa" which roughly translates into "I am my own pope."
Yes, I realize it's a bit an oversimplification, but at the end of the day or even at the end of 500 years, this is what you get when you separate the Church from the Scriptures. "Every plowboy can become his own pope" was a common saying in the days after 1517.