Royal Swedish Opera architect Carl Fredrik Adelcrantz was commissioned by King Gustav III, a strong adherent of the ideal of an enlightened absolutism and as such was a great patron of the arts. The Swedish Opera company had first been located in Bollhuset, but there was a need to separate the Opera from the theatre and give them separate buildings. Construction began in 1775 and the theatre was inaugurated on 30 September 1782 with a performance of the German composer Johann Gottlieb Naumann's "Cora och Alonzo". It was also the place for public masquerade balls, events inspired from the famous opera-balls in Paris,
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