FLORENCE, ITALY - APRIL 03:  Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall attend a Gala Dinner at Palazzo Vecchio with the Mayor of Florence Dario Nardella and his wife during day 4 of their visit to Italy, on April 3, 2017 in Florence, Italy. The Prince of Wales will be presented with the Renaissance Man of the Year Award.  (Photo by Arthur Edwards - Pool/Getty Images)
FLORENCE, ITALY - APRIL 03:  Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall attend an event for the Italian Wool Industry and the Prince of Wales's Campaign for Wool at Palazzo Pitti, on April 3, 2017 in Florence, Italy. Their Royal Highnesses will be introduced to representatives from Woolmark and the Campaign for Wool, view product demonstrations, learn about innovative wool techniques and be given a tour of the palace's Art Gallery. The Prince of Wales launched the Campaign for Wool in January 2010 as an initiative to expand the market for British and Commonwealth wool and promote awareness of its environmental benefits.  (Photo by Chris Jackson/Getty Images)
FLORENCE, ITALY - APRIL 03: Mayor of Florence, Dario Nardella presents Prince Charles, Prince of Wales with the keys of the city of Florence as he attended a Gala Dinner at Palazzo Vecchio he was also presented with the Renaissance Man of the Year Award on March 3, 2017 in Florence, Italy. (Photo by Arthur Edwards - Pool/Getty Images)
FLORENCE, ITALY - APRIL 03:  Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall visit an art restoration workshop Opificio delle Pietre Dure e Laboratori di Restauro during day 4 of their visit to Italy, on April 3, 2017 in Florence, Italy.  (Photo by John Stillwell - WPA Pool/Getty Images)
FLORENCE, ITALY - APRIL 03:  Prince Charles, Prince of Wales (not pictured) and Camilla, Duchess of Cornwall attend an event for the Italian Wool Industry and The Prince of Wales's Campaign for Wool during day 4 of their visit to Italy, on April 3, 2017 in Florence, Italy.   (Photo by Arthur Edwards - Pool/Getty Images)