A portrait of former Pope Benedict XVI, left, hangs in the sacristy of St. John's arch-Cathedral in Warsaw, Poland on Sunday, March 3, 2013, following a Mass during which the congregation prayed for a "wise choice" of his successor this month. Benedict stepped down on Thursday. He said his frail health did not allow him to lead the Church as well as he should. (AP Photo/Czarek Sokolowski)