Scarcely two months after Mattioli's journey to France, the courts of Vienna, Madrid, Turin, and the Venetian Republic were simultaneously informed of all that had taken place. In order to reap a double harvest of gold, Mattioli had cynically betrayed both his master Charles IV. and the King of France. Like a thunderbolt there came to Versailles the news of the arrest of Baron d'Asfeld, the envoy appointed by Louis XIV. to exchange ratifications with Mattioli. The governor of Milan had caused him to be seized and handed over to the Spaniards. The rage of Louis XIV. and of Louvois, who had urged the opening of negotiations, taken an active part in them, and begun preparations for the occupation of Casal, may well be imagined. The Abbé d'Estrades, not less irritated, conceived a scheme of the most daring kind, proposing to Versailles nothing less than the abduction of the Mantuan minister. But Louis XIV. was determined to have no scandal. Catinat was charged with carrying out the scheme in person. The Abbé d'Estrades, in his dealings with Mattioli, feigned ignorance of the double game the Count was playing. He led him to believe, on the contrary, that the balance of the sums promised at Versailles was about to be paid. A meeting was fixed for May 2, 1679. On that day d'Estrades and Mattioli got into a carriage, the passing of which was awaited by Catinat accompanied by some dozen men. At two o'clock in the afternoon, Mattioli was in the fortress of Pignerol, in the hands of jailer Saint-Mars. When we remember the rank held by the Italian minister, we are confronted with one of the most audacious violations of international law of which history has preserved a record. Early in the year 1694, Mattioli was transferred to the Isles of Sainte-Marguerite; we have seen that he entered the Bastille on September 18, 1698, and died there on November 19, 1703.