The text recounts that Louis XIV was going to attack the sibling of his wife. All the brothers of Charles II, King of Spain, had died and Charles was weak and unhealthy. Louis XIV and Emperor Leopold of Austria had a treaty which decreed that Leopold would let Louis XIV take possession of Flanders on the condition that it would pass to the emperor upon the death of Charles II. Leopold regretted signing the treaty almost immediately and demanded that no court should know of it. No copies of the treaty were made and the only one in existence was placed in a metal cassette for which only Leopold and Louis XIV had keys. This cassette was given to the French ambassador in Vienna and Louis XIV sent sixteen of his bodyguards to accompany the courier in case the emperor changed his mind and tampered with the document whilst it was being transported. It was taken to Versailles. This, Voltaire proclaims, is how the emperor let the King of Spain be robbed.