Gustavo III (Verdi) to meet commitments regarding "Lear". Finally, in a letter which he wrote to Torelli in September 1857, Verdi confessed that he had "looked through an infinite number of plays...but not one of them will do for me..." but he then described an existing libretto which interested him, one which was written by the French playwright and librettist Eugene Scribe for Daniel Auber's very successful 1833 opera, "Gustave III, ou Le bal masqué": Verdi turned to the historical subject of King Gustav III of Sweden, who was shot while attending a masked ball in Stockholm in 1792 and died thirteen days
Gustavo III (Verdi) opera had been butchered by the censors when it was presented in his absence a few years before. Rejecting any involvement with "Adelia", a lawsuit was then set in place by the theatre for breach of contract. In his counter suit, Verdi claimed damages and, in the document which he prepared called "Defense of Maestro Cavalier Giuseppe Verdi" and in which he gave instructions to his lawyer, he laid what he regarded as the absurdity of some of the requirements. These included the substitution of one word of the opening chorus' "Die!" for "He sleeps". In addition, it has been