KING'S LYNN, UNITED KINGDOM - DECEMBER 27: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge and Prince Charles, Prince of Wales attend the Sunday service at St Mary Magdalene Church, Sandringham on December 27, 2015 in King's Lynn, England. (Photo by Max Mumby/Indigo/Getty Images)