Toward the end of 1792, Cssanova wrote a letter to Robespierre, which, as he advises M. Opiz, the 13th January 1793, occupied one hundred and twenty folio pages. This letter was not to be found at Dux and it may possibly have been sent, or may have been destroyed by Casanova on the advice of Abbe O'Kelly. Casanova's feelings were very bitter over the trial of Louis XVI., and in his letters to M. Opiz he complained bitterly of the Jacobins and predicted the ruin of France. Certainly, to Casanova, the French Revolution represented the complete overthrow of many of his cherished illusions.
On the 1st August 1793, Wilhelmina Rietz, Countess Lichtenau (called the Pompadour of Frederic-William II., King of Prussia) wrote to the librarian at Dux:
"Monsieur
"It seems impossible to know where Count Valstaine [Waldstein] is staying, whether he is in Europe, Africa, America, or possibly the Megamiques. If he is there, you are the only one who could insure his receiving the enclosed letter.
"For my part, I have not yet had time to read their history, but the first reading I do will assuredly be that.
"Mademoiselle Chappuis has the honor of recalling herself to your memory, and I have that of being your very humble servant,
"Wilhelmina Rietz."
The allusions to a "history" and to the 'Megamiques' in this letter refer to Casanova's romance, 'Icosameron'.
About this time, Count Waldstein returned to Dux after having been, at
Paris, according to Da Ponte, concerned in planning the flight of Louis
XVI., and in attempting to save the Princess Lamballe. On the 17th
August, Casanova replied to the above letter:
"Madame,