Rousse State Opera was created in 1949.
Victoria State Opera was created in 1962.
Vienna State Opera was created in 1869.
Hamburg State Opera was created in 1678.
Berlin State Opera was created in 1742.
Bavarian State Opera was created in 1653.
Hungarian State Opera House was created in 1884.
State Opera Stara Zagora was created in 1925.
Prague was created in 885.
ČAFC Prague was created in 1899.
The Prague Post was created in 1991.
Prague Quartet was created in 1920.