VALLETTA, MALTA - SEPTEMBER 20:  Prince William, Duke of Cambridge attends an Independance Day reception in Upper Barakka Gardens during an official visit to Malta on September 20, 2014 in Valletta, Malta. Prince William, Duke of Cambridge is making an official two day visit to Malta as a representative of Queen Elizabeth II. Originally the Duchess of Cambridge was due to make the trip as her first solo overseas engagement as part of Malta's fiftieth Anniversary of Independance but had to cancel due to acute morning sickness with her second child.  (Photo by Heathcliff O'Malley-Pool/Getty Images)