LONDON, ENGLAND - APRIL 8: Sophie, Duchess of Edinburgh (L) and Prince Edward, Duke of Edinburgh (C) on behalf of King Charles III, stand with French Ambassador to the UK, Helene Duchene (2nd R) as they watch the Changing of the Guard at Buckingham Palace with France's Gendarmerie's Garde Republicaine taking part to commemorate the 120th anniversary of the Entente Cordiale - the historic diplomatic agreement between Britain and France which laid the groundwork for their collaboration in both world wars on April 8, 2024 in London, England.  (Photo by Peter Nicholls/Getty Images)
LONDON, ENGLAND - APRIL 8: Sophie, Duchess of Edinburgh and Prince Edward, Duke of Edinburgh on behalf of King Charles III, stand with French Ambassador to the UK, Helene Duchene (R) as they watch the Changing of the Guard at Buckingham Palace with France's Gendarmerie's Garde Republicaine taking part to commemorate the 120th anniversary of the Entente Cordiale - the historic diplomatic agreement between Britain and France which laid the groundwork for their collaboration in both world wars on April 8, 2024 in London, England. (Photo by Victoria Jones-Pool/Getty Images)
LONDON, ENGLAND - APRIL 8: Sophie, Duchess of Edinburgh and Prince Edward, Duke of Edinburgh on behalf of King Charles III, stand with French Ambassador to the UK, Helene Duchene (R) as they watch the Changing of the Guard at Buckingham Palace with France's Gendarmerie's Garde Republicaine taking part to commemorate the 120th anniversary of the Entente Cordiale - the historic diplomatic agreement between Britain and France which laid the groundwork for their collaboration in both world wars on April 8, 2024 in London, England. (Photo by Victoria Jones-Pool/Getty Images)
LONDON, ENGLAND - APRIL 8: Sophie, Duchess of Edinburgh and Prince Edward, Duke of Edinburgh on behalf of King Charles III, watch the Changing of the Guard at Buckingham Palace with France's Gendarmerie's Garde Republicaine taking part to commemorate the 120th anniversary of the Entente Cordiale - the historic diplomatic agreement between Britain and France which laid the groundwork for their collaboration in both world wars on April 8, 2024 in London, England. (Photo by Victoria Jones-Pool/Getty Images)
LONDON, ENGLAND - APRIL 8: Sophie, Duchess of Edinburgh on behalf of King Charles III, attends the Changing of the Guard at Buckingham Palace with France's Gendarmerie's Garde Republicaine taking part to commemorate the 120th anniversary of the Entente Cordiale - the historic diplomatic agreement between Britain and France which laid the groundwork for their collaboration in both world wars on April 8, 2024 in London, England. (Photo by Victoria Jones-Pool/Getty Images)