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,
The Royal Opera the day-to-day backstage life of the opera and ballet companies and the running of the theatre. "The Daily Telegraph" commented, "For years, the Opera House was a byword for mismanagement and chaos. Its innermost workings were exposed to public ridicule by the BBC fly-on-the-wall series "The House"". In 1995, The Royal Opera announced a "Verdi Festival", of which the driving force was the company's leading Verdian, Sir Edward Downes, by now returned from Australia. The aim was to present all Verdi's operas, either on stage or in concert performance, between 1995 and the centenary of Verdi's death, 2001. Those operas