Bishop Vincenzo de Gregorio brings the ampulla that contains the blood of San Gennaro (Saint Januarius, patron of Naples) before the arrival of Pope Francis at the Duomo as part of his pastoral visit on March 21, 2015 in Naples. Up to 800,000 people were expected to turn out throughout the day in the southern Italian city to greet the Argentine pontiff, who last year declared war on organised crime by "excommunicating" all mafiosi from the Catholic Church. AFP PHOTO / ALBERTO PIZZOLI