Pope Francis, leader of the Roman Catholic Church, has proclaimed two of his predecessors -- John the 23rd and John Paul the Second -- as saints at a ceremony Sunday in St. Peter's Square.
Pope Francis Canonizes Two Predecessors

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Pope Francis waves to the faithful as he is driven through the crowd after presiding over a solemn canonization ceremony in St. Peter's Square, the Vatican, April 27, 2014.

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Pope Francis greets the faithful as he is driven through the crowd along Via della Conciliazione while celebrating the ceremony for the canonizations of Pope John XXIII and Pope John Paul II in St. Peter's Square, at the Vatican, April 27, 2014.

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Pope Francis kisses a relic belonging to John Paul II during a ceremony in St. Peter's Square at the Vatican, April 27, 2014.

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Nuns wave as Pope Francis is driven through the crowd after presiding over a ceremony in St. Peter's Square at the Vatican, April 27, 2014.