In another of his operas, Dr. Malatesta sings "Bella siccome un angelo" when describing a fictional sister to the title bachelor, while the self-proclaimed genius Dr. Dulcamara sells the title object of another opera to Nemorino to allow him to woo Adina.  
One of this composer's title characters sings the aria "Quand le destin au milieu" to convince the Countess of Berkenfield not to force her to marry the Duke of Crackenthorp.  In another of his operas, Dr. Malatesta sings "Bella siccome un angelo" when describing a fictional sister to the title bachelor, while the self-proclaimed genius Dr. Dulcamara sells the title object of another opera to Nemorino to allow him to woo Adina.  Another of his operas contains the sextet "Chi mi frena?", after which Edgardo curses the entire Lammermoor family.  For 10 points, name this Italian composer of Daughter of the Regiment, Don Pasquale, L'Elisir d'Amore, and Lucia di Lammermoor.
One of this composer's title characters sings the aria "Quand le destin au milieu" to convince the Countess of Berkenfield not to force her to marry the Duke of Crackenthorp.  
Gaetano {Donizetti}