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,
Falstaff (opera) an English critic, R A Streatfeild, remarked on how Verdi succeeded: In November Boito took the completed first act to Verdi at Sant'Agata, along with the second act, which was still under construction: "That act has the devil on its back; and when you touch it, it burns", Boito complained. They worked on the opera for a week, then Verdi and his wife Giuseppina Strepponi went to Genoa. No more work was done for some time. The writer Russ McDonald observes that a letter from Boito to Verdi touches on the musical techniques used in the opera – he wrote