Edoardo, Rodrigo and the guards await the enemy. Corradino, Matilde, Aliprando and Ginardo come through the gate, together with Isidoro and his guitar (he has appointed himself court poet). The Countess follows them. When Corradino tells Edoardo that his father will be defeated, Edoardo is overcome, but when Matilde comforts the boy, Corradino succumbs to jealousy. An ensemble ("Oh come mai quest'anima sfavilla in un momento!" - "Oh, how my soul flares up in a minute!") develops, Isidoro urges the guards onwards, and the curtain falls.