LONDON, UNITED KINGDOM - NOVEMBER 01: Queen Elizabeth II greets Maria Clemencia de Santos as her husband Colombia's President Juan Manuel Santos looks on at a ceremonial welcome for Colombia's President Juan Manuel Santos and his wife Maria Clemencia de Santos at Horse Guards Parade on November 1, 2016 in London, England. The President is on a state visit to Britain. (Photo by Stefan Wermuth - WPA Pool/Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 01: Colombia's President Juan Manuel Santos and his wife Maria Clemencia de Santos are greeted by Britain's Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall at Clarence House on November 1, 2016 in London, England. The President of the Republic of Colombia Juan Manuel Santos and his wife Maria Clemencia Rodriguez de Santos are paying their first State Visit to the UK as official guests of Queen Elizabeth (Photo by Hannah McKay - WPA Pool/Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 1: Duchess of Cornwall, Camilla and Prince of Wales, Prince Charles (not seen) arrive at the Rosewood Hotel to meet with the Colombia's President Juan Manuel Santos (not seen) and Colombia's first lady Maria Clemencia Rodriguez (not seen) during their state visit to the London, England on November 1, 2016. (Photo by Kate Green/Anadolu Agency/Getty Images)
NEW YORK, NY - OCTOBER 31: Prince Michael of Kent, Princess Michael of Kent and Ambassador Matthew Rycroft attend the Oxford Philharmonic Orchestra's US Premier Performance with Artist in Residence Maxim Vengerov at The Metropolitan Club on October 31, 2016 in New York City. (Photo by Patrick McMullan/Patrick McMullan via Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 01: Queen Elizabeth II, Colombia's president Juan Manuel Santos with his wife, Maria Clemencia Rodriguez de Santos and Prince Philip, Duke of Edinburgh look at Colombian items from the Royal collection in the picture Gallery of Buckingham Palace at start of his official state visit to the UK on November 1, 2016 in London, England. (Photo by John Stillwell - WPA Pool/Getty Images)
