Giacomo Casanova scandal involving a local pair of star-crossed lovers, Cardinal Acquaviva dismissed Casanova, thanking him for his sacrifice, but effectively ending his church career. In search of a new profession, Casanova bought a commission to become a military officer for the Republic of Venice. His first step was to look the part: He joined a Venetian regiment at Corfu, his stay being broken by a brief trip to Constantinople, ostensibly to deliver a letter from his former master the Cardinal. He found his advancement too slow and his duty boring, and he managed to lose most of his pay playing faro.
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