Giacomo Casanova for him, however, he could only roam across Spain, with little to show for it. In Barcelona, he escaped assassination and landed in jail for 6 weeks. His Spanish adventure a failure, he returned to France briefly, then to Italy. In Rome, Casanova had to prepare a way for his return to Venice. While waiting for supporters to gain him legal entry into Venice, Casanova began his modern Tuscan-Italian translation of the "Iliad", his "History of the Troubles in Poland", and a comic play. To ingratiate himself with the Venetian authorities, Casanova did some commercial spying for them. After months
Giacomo Casanova them Madame de Pompadour, Count de Saint-Germain, d'Alembert, and Jean-Jacques Rousseau. So popular was alchemy among the nobles, particularly the search for the "philosopher's stone", that Casanova was highly sought after for his supposed knowledge, and he profited handsomely. He met his match, however, in the Count de Saint-Germain: "This very singular man, born to be the most barefaced of all imposters, declared with impunity, with a casual air, that he was three hundred years old, that he possessed the universal medicine, that he made anything he liked from nature, that he created diamonds." De Bernis decided to send Casanova