Vitellia loves Tito, the emperor of the Roman Empire. When he does not return her love, she and Tito’s confidant Sesto hatch a plan to kill him in order to seize the throne for herself. The attack fails. Tito refuses to punish his assailants and eventually grants them clemency. With this political and profoundly human story – one of his very last compositions – Wolfgang Amadeus Mozart created a music-theatrical masterpiece in which virtuoso arias and monumental ensembles predominate.