VATICAN CITY, VATICAN - APRIL 04: Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall are welcomed by the prefect of the papal household Georg Gaenswein as they arrive at the Vatican for an audience of Pope Francis on April 4, 2017 in Vatican City, Vatican. The Prince of Wales and Duchess of Cornwall are in Italy for a six-day visit. (Photo by Franco Origlia/Getty Images)
The Duchess of Cornwall, Camilla, leaves after a visit to the British School of Rome on April 4, 2017. / AFP PHOTO / Andreas SOLARO (Photo credit should read ANDREAS SOLARO/AFP via Getty Images)
Pope Francis (C) welcomes Britain's Prince Charles and his wife Camilla, Duchess of Cornwall, as they arrive for a private audience on April 4, 2017 at the Vatican. / AFP PHOTO / POOL / Vincenzo PINTO (Photo credit should read VINCENZO PINTO/AFP via Getty Images)
VATICAN CITY, VATICAN - APRIL 04: Pope Francis meets with Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall on April 4, 2017 in Vatican City, Vatican. (Photo by Tim Rooke - Pool / Getty Images)
Britain's Prince Charles and his wife Camilla, Duchess of Cornwall visit the Vatican Apostolic Library on April 4, 2017 before a private audience with Pope Francis. / AFP PHOTO / POOL / ALESSANDRO BIANCHI (Photo credit should read ALESSANDRO BIANCHI/AFP via Getty Images)
