The Napoleonic Wars caused him a total of four wounds and earned him twenty mentions in dispatches for his courage.

Returning to Italy after Waterloo, Rondizzoni was admitted to the Regiment of the Duchy of Parma which was then ruled by Marie Louise of Austria.

Later he moved to Philadelphia in the United States, and it was in this city, that he met the Chilean General Jose Miguel Carrera.

In July 1817 he joined the Chilean army and took part in Sorpresa de Cancha Rayada battle.

Appointed a Member of the Legion of Merit of Chile, General Rondizzoni is still living in the memory of his adopted country, which has named streets, squares and monuments and even a fortified work in the port of Talcahuano in his honour.