|Event||John Gabriel Borkman||
|Venue||Bonner Stadttheater, Bonn, Germany|
|First Date||21st January 1907|
|Further Information||Also performed on 22 January 1907.|
Arthur Bauer from Stadttheater Frankfurt made a guest performance in the title role.
Source: Bonner Zeitung 21, 22 and 23 January 1907