The Royal Swedish Opera, or Kungliga Operan, is the national stage for opera in Sweden. The building lies in the center of Stockholm, on the eastern side of Gustav Adolfs torg. The opera company was founded by King Gustav III and its first performance was given on January 18, 1773. The first opera house was inaugurated in 1780s and served for a century before being replaced at the end of the 19th century. Both houses were officially called the "Royal Opera", however the terms "The Gustavian Opera" and "The Oscarian Opera", or the "Old" and "New" Opera are used when distinction is needed. The original Stockholm Opera, the work of architect Carl Fredrik Adelcrantz was commissioned by King Gustav III in 1775, and completed in 1782. The king was a strong adherent of the ideal of an enlightened absolutism and as such was a great patron of the arts. Coincidentally, it was at the opera house which he had built that the king was to meet his fate. During a masquerade at the Opera on the March 16, 1792, he was shot by Jacob Johan Anckarstr