He was the Pope off Calvinism and Protestantism. He was against the catholic Pope. He lived most of his later life in Geneva and led a Protestant reform there, so he is known as the pope of Geneva.
That would be John Calvin
There is no pope named John Calvin. He would be considered as a heretic in the catholic Church.
There has never been a Pope John Benedict.
There has never been a Pope John Paul XXIII. There has been Pope John Paul I and John Paul II and Pope John XXIII. Which of these were you referring to?
There were 2 Pope John Pauls. The last Pope was Pope John Paul II.
NEVER! There has never been a Pope John Paul VI but there has been a Pope Paul VI and a Pope John Paul II.
Which Pope John? There have been two.
There have been 23 popes named John, Pope John XXIII was the last. He died in 1963.
There has never been a Pope Paul XXIII. There has been a Pope John XXIII.
As for centuries now the Pope has been a pretty elderly man when elected (save John Paul II who was in his late 50's), usually the Pope's father is deceased.
As of 30 May 2014 there have been two named saints from the Second Vatican Council. Pope St. John XXIII was the pope that called the Council, and Pope St. John Paul II was a participant in the Council.
Pope John XXIII called the council.