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).
Radamisto (Handel) Radamisto (HWV 12) is an opera seria in three acts by George Frideric Handel to an Italian libretto by Nicola Francesco Haym, based on "L'amor tirannico, o Zenobia" by Domenico Lalli and "Zenobia" by Matteo Noris. It was Handel's first opera for the Royal Academy of Music. The opera's plot is loosely based on incidents from Tacitus's "Annals of Imperial Rome".