Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
Siegfried by Wagner, Richard, Sib 31 Mej 2025, Minn (2025/2025), Immexxi minn Peter Konwitschny, Alexander Becker, Ulas Nagler,, Surmast Direttur Gabriel Feltz, Opernhaus Dortmund, Dortmund, Germany