VALLETTA, MALTA - NOVEMBER 27:  Camilla, Duchess of Cornwall, Prince Charles, Prince of Wales, Queen Elizabeth II and  Prince Philip, Duke of Edinburgh pose as they attend a dinner at the Corinthia Palace Hotel in Attard during the Commonwealth Heads of Government Meeting (CHOGM) on November 27, 2015 near Valletta, Malta. Queen Elizabeth II, The Duke of Edinburgh, Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall arrived today to attend the Commonwealth Heads of State Summit.  (Photo by Arthur Edwards -Pool/Getty Images)