The Prince Of Wales And The Duchess Of Cornwall Visit Serbia [Getty Images]

BELGRADE, SERBIA - MARCH 16: Camilla, Duchess of Cornwall poses with a child next to a video broadcast showing tennis star Novak Djokovic while visiting the Novak Djokovic Foundation on March 16, 2016 in Belgrade, Serbia. The Prince and Duchess are visiting Croatia, Serbia, Montenegro and Kosovo. (Photo by Sean Gallup - Pool/Getty Images)

Getty Images Entertainment Sean Gallup