(L-R) Britain's Prince Charles, Prince of Wales, Britain's Prince William, Duke of Cambridge, Camilla, Duchess of Cornwall and Catherine, Duchess of Cambridge arrive for a traditional Christmas Day Church Service at Sandringham in eastern England, on December 25, 2015. AFP PHOTO / BEN STANSALL / AFP / BEN STANSALL (Photo credit should read BEN STANSALL/AFP/Getty Images)
