(Monteverdi: L'incoronazione di Poppea). Sop./mez. Wife of the Emperor Nerone, who is now in love with Poppea. She plots Poppea's death by the hand of her (Poppea's) husband Ottone, but this fails and Nerone deserts Ottavia to marry Poppea. Arias: Disprezzata regina (‘Spurned Queen’); Addio Roma (‘Farewell Rome’). Created (1642) by Anna Renzi.