The collection was kept in a gallery refurbished for the purpose by the court architect, Ennemond Alexandre Petitot, and inaugurated in 1769. In 1771, both Du Tillot and Paciaudi fell out of favor, and the library fell under the supervision of the Benedictine Andrea Mazza. However, Paciaudi was recalled from 1778 till his death in 1785 to his former office.
