Royal Swedish Opera Daniel Auber and "Un ballo in maschera" by Verdi.) Following the assassination, the opera house was closed until 1 November 1792, when it was opened again, which by some was considered shocking. The son of Gustav III, King Gustav IV Adolf of Sweden, did not like the Opera, possibly because of the murder of his father, and disliked the fact that the scene of his father's murder was used as a place of amusement and leisure, and when a frivolous play was performed for his queen Frederica of Baden in 1806, he decided to close it down. It remained closed
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