# Gustav Landauer

> German singer and opera singer (1866-1944)

**Wikidata**: [Q20879063](https://www.wikidata.org/wiki/Q20879063)  
**Source**: https://4ort.xyz/entity/gustav-landauer-q20879063


## References

1. [Source](http://www.operone.de/repro/reprol.php?seite=2)