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17th May 1972: Queen Elizabeth II of Great Britain with French president Georges Pompidou at the Palace of Versailles during her state visit to France. Behind them are Mme Pompidou and Prince Philip, the Duke of Edinburgh. (Photo by Keystone/Getty Images)

17th May 1972:  Queen Elizabeth II of Great Britain with French president Georges Pompidou at the Palace of Versailles during her state visit to France. Behind them are Mme Pompidou and Prince Philip, the Duke of Edinburgh.  (Photo by Keystone/Getty Images)