Question: Romilda Pantaleoni is associated with her roles of La Gioconda and Margherita in what opera
Sentence (from "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.
Relevant evidence: Yes