View of the tapestry showing Pope John XXIII during the canonisation mass of Popes John XXIII and John Paul II on St Peter's at the Vatican on April 27, 2014. Catholics from around the world gathered in Rome on Sunday for a mass presided by Pope Francis to confer sainthood on John Paul II and John XXIII -- two influential popes who helped shape 20th century history. AFP PHOTO / ALBERTO PIZZOLI