LONDON, ENGLAND - MAY 04:  Queen Elizabeth II and Prince Philip, Duke of Edinburgh arrive at St James's Palace for a service for members of The Order of The Merit at St James's Palace on May 4, 2017 in London, England. Buckingham Palace today announced the Duke of Edinburgh is to retire from Royal duties and will no longer carry out public engagements from the autumn of 2017.  (Photo by John Stillwell - WPA Pool /Getty Images)