For Verdi he wrote Alzira (1845), La battaglia di Legnano (1849) and Luisa Miller (1849), and finished his libretto for Il trovatore (1853) when he died in July 1852,but it was expanded by Leone Emanuele Bardare.
•
Medea (Saverio Mercadante), from an original libretto by Felice Romani
•
Budden, Julian, The Operas of Verdi, 2, From Il Trovatore to La Forza del destino .