(FILES) This file picture taken on July 4, 2010 shows Pope Benedict XVI (L) blessing the relics of one of his predecessors, St Celestine V, during a Holy mass on the occasion of the 800th anniversary of Celestine V's birth in central Garibaldi square in Sulmona. Pope Benedict XVI announced on February 11, 2013 his resignation, while the last pope to have abdicated the papacy is Celestin V in 1294. AFP PHOTO / FILES / ALBERTO PIZZOLI