Bergoglio is known for modernizing an Argentine church that had been among the most conservative in Latin America.
This Jan. 13, 2007 file photo provided by the Vatican newspaper L'Osservatore Romano, then Pope Benedict XVI, left, shakes hands with the archbishop of Buenos Aires Cardinal Jorge Mario Bergoglio during their meeting at the Vatican, Saturday, Jan. 13, 2007.
Credit: AP Photo/L'Osservatore Romano