Siebenstein is a play by the German writer Maxim Ziese.
It is a First World War drama.
It appeared at the Deutsches Theater in Berlin from March 1933 with Jürgen Fehling directing and a cast that included Veit Harlan, Lothar Müthel and Hilde Körber.
Staged just as the Nazi Party was taking power in Germany, it is a work of transition that is nationalistic and pro-military rather than explicitly Nazi.
[1] It was followed afterwards at the theatre by a more overtly Nazi work Schlageter by Hanns Johst.