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
Giuseppe Verdi those feelings. Julian Budden expresses the impact of "Rigoletto" and its place in Verdi's output as follows: "Just after 1850 at the age of 38, Verdi closed the door on a period of Italian opera with "Rigoletto". The so-called "ottocento" in music is finished. Verdi will continue to draw on certain of its forms for the next few operas, but in a totally new spirit." One example of Verdi's wish to move away from "standard forms" appears in his feelings about the structure of "Il trovatore". To his librettist, Cammarano, Verdi plainly states in a letter of April 1851 that