La clemenza di Tito
Vitellia, is the daughter of Vitellius who has lost his position of emperor.  Vitellius wants revenge against Titus.  Vitellia asks Titus's friend Sextus, who is in love with her, to act against him. But when she hears that Titus has sent Berenice of Cilicia, of whom she was jealous, back to Jerusalem, Vitellia tells Sextus to wait a while before doing what she had asked, hoping Titus will choose her (Vitellia) as his empress.