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) the opera. Basing it as he did on the skeleton score of "Una vendetta", Verdi transformed the setting and characters' names to fit the requirements. The score's text required modification to agree with "Ballo" and not "Una vendetta", orchestration was completed, and musical changes and adjustments were made. Significant changes in the music occurred after 11 September and are also detailed by Gossett. The first performance of the new opera was presented on 17 February 1859. By about 1870, after "Ballo" had become successful and when Italian unification removed much of regional censorship, Verdi could probably have returned the opera