Nope, he's the Pope of all Christianity....he was in the year 100, and the year 500, and the year 1000, and the year 1,900, an the year 2015....nothing changed. Along about the 1600's, some decided to change the definition of Christianity.
That didn't work then and it doesn't work now. Christianity is the Catholic church and those who decide to practice it outside the true church.....O.K., but it's still Christianity and he is still the Pope of Christianity....
That's fiction based on fraudulent and spurious documents, and historically proven falsehoods.