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 in October 1846. Before she left Verdi gave her a letter that pledged his love. On the envelope, Strepponi wrote: "5 or 6 October 1846. They shall lay this letter on my heart when they bury me." Verdi had completed "I masnadieri" for London by May 1847 except for the orchestration. This he left until the opera was in rehearsal, since he wanted to hear "la [Jenny] Lind and modify her role to suit her more exactly." Verdi agreed to conduct the premiere on 22 July 1847 at Her Majesty's Theatre, as well as the second performance. Queen Victoria and