The birth dates and even years of early Popes are frequently not available. In modern times, Popes have generally been elected at older ages. Today a man of 65 years is generally considered too young to be Pope. The youngest Pope was probably either
+ Pope Benedict IX who became Pope at an unknown age between 11 and 20
+ Pope John XII who was 18 at the beginning of his papacy
Pope Paul VI was elected pope after the death of Pope John XXIII.
John Paul II
There is no pope named Pope XXIII. If you are referring to Pope John XXIII, he became pope in 1958.
Pope Francis is the reigning pope in 2013.
The current pope is Pope Benedict XVI.
Pope Pius III was the predecessor of Pope Julius II.
Pope Benedict followed Pope John Paul II as pope.
It was Pius XII. He was pope from Mar. 2, 1939 to his death on Oct. 9, 1958.
Pope Pius I was the 10th pope.
pope julius the 2nd,pope leo,and pope clement
Pope Francis is pope number 266.
Pope Benedict XVI was the 265th pope.