His works there included a portrait of the French viceroy, Eugène de Beauharnais, and a large painting of the triumphal entry of General Domenico Pino into Milan through the Porta Romana in February 1806.
He was a major contributor to the Serie di vite e ritratti de'famosi personaggi degli ultimi tempi, a three-volume collection of illustrated biographies published in Milan between 1815 and 1818.
[1] Following his return to France he drew genre scenes which were engraved for the Journal des Dames (1817), and portraits of soldiers which appeared in a Galerie militaire (1818).
He showed three pictures, including a Death of the Virgin, at the Salon of 1819, and a full-length portrait Louis XVIII, painted for the Palais de Justice at Rouen, in 1822.
[1] His younger brother François Joseph Bosio was a successful sculptor, who was eventually created a baron by Charles X.