FILE - In this September 1978 file photo provided by the German Catholic News Agency KNA, Albanian-born Mother Teresa, left, and German Cardinal Joseph Ratzinger, right, attend a Mass during the 85th German Catholics Day in Freiburg, southern Germany, from Sept. 13-19, 1978. Ratzinger was elected Pope, April 19, 2005 and chose Benedict XVI as his papal name. Pope Benedict XVI announced Monday, Feb. 11, 2013, he would resign Feb. 28 because he is simply too old to carry on. (AP Photo/KNA, File)
Pope Benedict XVI bids farewell
The Catholic Church awoke March 1 with no leader following the resignation of Benedict XVI, who pledged obedience to his successor and described himself as "simply a pilgrim" starting the final journey of his life.