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 written, he broke his contract. This resulted in litigation and counter-litigation; with the legal issues resolved, Verdi was free to present the libretto and musical outline of "Gustave III" to the Rome Opera. There, the censors demanded further changes; at this point, the opera took the title "Un ballo in maschera". Arriving in Sant'Agata in March 1859 Verdi and Strepponi found the nearby city of Piacenza occupied by about 6,000 Austrian troops who had made it their base, to combat the rise of Italian interest in unification in the Piedmont region. In the ensuing Second Italian War of Independence the