VATICAN CITY, Apr 27 (AFP): Pope Francis Sunday proclaimed as saints his influential predecessors John Paul II and John XXIII at an historic ceremony attended by hundreds of thousands of pilgrims in St Peter's Square.
"We declare and define as saints the blessed John XXIII and John Paul II," the Catholic leader said in a Latin prayer, as pilgrims and foreign dignitaries applauded and chanted: "Amen!"
Pope emeritus Benedict XVI, 87, who is the first pontiff to step down since the Middle Ages, made a rare public appearance in his white papal cassock and Francis embraced him before the ceremony.
Commentators defined the event as a "four-pope day".
Many faithful waved the red-and-white flags from John Paul II's native Poland and one pilgrim held up a banner reading: "Two pope saints in heaven, two in St Peter's Square".
"We are followers of all four popes who have all been close to the people. This is an historic day but one that you really feel inside," said Luisa Tomolo, a member of an Italian religious movement.
Thousands also followed the ceremony on giant screens set up in picturesque spots of Rome, witnessing an event seen as a way of uniting conservative and reformist wings of Catholicism.
The ceremony was shown in 3D at hundreds of cinemas across the world from Francis's Argentina to Lebanon and was live tweeted by the Vatican's vicariate of Rome under the hashtag #2popesaints.
Francis was co-celebrating the mass with Benedict XVI and hundreds of bishops and cardinals-the first time that two living popes say mass together.
It was also the first time that two Catholic Church leaders were being declared saints on the same day.
The charismatic, globe-trotting John Paul II helped topple Communism in Eastern Europe and John XXIII is best remembered for launching a process of reform of the Catholic Church in the 1960s.
Former German chancellor Helmut Kohl paid tribute to John Paul II in an editorial for Il Messaggero.
"He played a decisive role in making the fall of the Berlin Wall possible," Kohl said, adding that the pope had been "a fearless fighter for freedom".
Francis has reached levels of popularity not seen since the days of John Paul II but experts say he is more comparable to John XXIII-a unifying figure with the kindly manner of a parish priest.