VATICAN CITY, VATICAN - NOVEMBER 20:  Italian President Sergio Mattarella (R) and Italian Prime Minister Matteo Renzi attend the closing of the Jubilee of Mercy in St Peter's Basilica on November 20, 2016 in Vatican City, Vatican. The closing of the St Peter's Holy Door marks the end of the Jubilee Year of Mercy.  (Photo by Vatican Pool/Getty Images)