VIENNA, AUSTRIA - APRIL 06: Camilla, Duchess of Cornwall and Prince Charles, Prince of Wales visit the Weinbau Buscheschank Obermann vineyard on April 6, 2017 in Vienna, Austria. Their Royal Highnesses will tour the vineyard, wine cellar and the old wine press, and will view a selection of historical documents and an art exhibition. (Photo by Chris Jackson/Getty Images)
