The College of Cardinals tasked with selecting a new pope for the Roman Catholic Church begin meeting Tuesday to choose a successor to Pope Benedict
Cardinals Attend Mass Before the Conclave

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Cardinals hold their mitre hats as they attend a Mass for the election of a new pope celebrated by Cardinal Angelo Sodano inside St. Peter's Basilica, at the Vatican, March 12, 2013.

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A Vatican Swiss guard is seen as cardinals attend a Mass for the election of a new pope inside St. Peter's Basilica, at the Vatican, March 12, 2013.

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Cardinals attend a Mass for the election of a new pope inside St. Peter's Basilica, at the Vatican, March 12, 2013.

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Cardinals attend a Mass in St. Peter's Basilica at the Vatican, March 12, 2013.

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Faithful follow a Mass taking place inside St.Peter's Basilica for the election of a new pope, broadcast on a giant screen, not pictured, in St. Peter's Square, at the Vatican, March 12, 2013.

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Sister Veronica of the Theresian community prays in St. Peter's Square, at the Vatican, March 12, 2013.

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A pilgrim kneels in St. Peter's Square during a mass at St. Peter's Basilica attended by cardinals before sequestering themselves in the Sistine Chapel to elect the next pope at the Vatican, March 12, 2013.