The aria “Paolo, give me peace” from the third act of the opera by Riccardo Zandonai, soprano Iris Adami Corradetti (Milan 1904 – Padua 1998).
Recorded in 1943 (taken from You Tube).
Testo:

Francesca da Rimini is an opera of Riccardo Zandonai, on libretto by Gabriele D’Annunzio.  The first performance took place at the Teatro Regio of Torino on February 19, 1914, directed by Ettore Panizza.