New to London for "Ottone", in addition to Senesino, was celebrated Italian soprano Francesca Cuzzoni. She knew that Handel had written much of the music for the opera before he had hired her, and at the first rehearsal with the composer, indicated that she would like him to write a new entrance aria especially for her, to show her unique talents and make a good first impression with the London public. On being asked to replace the aria "Falsa imagine" with a new one, Handel, according to his first biographer John Mainwaring, flew into a rage: