Riccardo is welcomed by a chorus as he is about to enter Ezzelino's palace. He sings of his joy at being close to Cuniza ("Son fra voi! Già sorto è il giorno...Già parmi udire il fremito" – "Here I am amongst you! The day hasted by my desire has now arrived"). They enter the castle. Leonora arrives swearing to avenge Riccardo's desertion and she sings of the love which she had and a hope of recovering those innocent days ("Sotto il paterno tetto...Oh potessi nel mio core"- "Beneath my father's roof an angel appeared to me"). She leaves to go towards the village.