(L-R) Britain's Queen Elizabeth, Britain's Prince Philip, Duke of Edinburgh, Britain's Prince Charles, Prince of Wales and Britain's Camilla, Duchess of Cornwall attend a Commonwealth Service at Westminster Abbey in central London, on March 13, 2017. Queen Elizabeth II has been Head of the Commonwealth throughout her reign. Organised by the Royal Commonwealth Society, the Service is the largest annual inter-faith gathering in the United Kingdom. / AFP PHOTO / POOL / Dominic Lipinski (Photo credit should read DOMINIC LIPINSKI/AFP/Getty Images)
