Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
Siegfried by Wagner, Richard, Erb 19 Ott 2005, Minn (2005/2005), Immexxi minn Jean-Louis Grinda, Claire Servais,, Surmast Direttur Friedrich Pleyer, Théâtre Royal de Liège, Liège, Belgium