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.
12 popes have taken the name "Pius". Some of them were also canonized as saints. Pope Pius I, saint, Pope 140/142 to 155 Pope Pius II, Pope 1458 to 1474 Pope Pius III, Pope in 1503 Pope Pius IV, Pope 1559 to 1565 Pope Pius V, saint, Pope 1566 to 1572 Pope Pius VI, Pope 1775 to 1799 Pope Pius VII, Pope 1800 to 1823 Pope Pius VIII, Pope 1829 to 1830 Pope Pius IX, Pope 1846 to 1878 Pope Pius X, saint, Pope 1903 to 1914 Pope Pius XI, Pope 1922 to 1939 Pope Pius XII, Pope 1939 to 1958
Pope Francis is pope number 266.
Pope Benedict XVI was the 265th pope.