Romilda Pantaleoni is associated with her roles of La Gioconda and Margherita in what opera
La Gioconda (opera) La Gioconda is an opera in four acts by Amilcare Ponchielli set to an Italian libretto by Arrigo Boito (as Tobia Gorrio), based on "Angelo, Tyrant of Padua", a play in prose by Victor Hugo, dating from 1835. (This is the same source as Gaetano Rossi had used for his libretto for Mercadante's "Il giuramento" in 1837).
Mirandolina Mirandolina (H. 346) is a comic opera in three acts by Bohuslav Martinů, with a libretto (in Italian) by the composer after Carlo Goldoni's 1751 comedy "La locandiera" ("The Mistress of the Inn"). Salieri had an opera ("dramma giocoso") on the same subject premiered at the Vienna Kärtnertortheater in 1773.