# Fritz Ringgenberg

> (1891-1977)

**Wikidata**: [Q78069835](https://www.wikidata.org/wiki/Q78069835)  
**Source**: https://4ort.xyz/entity/fritz-ringgenberg


## References

1. Catalog of the German National Library
2. Historical Dictionary of Switzerland
3. Virtual International Authority File
4. [Source](http://www.hls-dhs-dss.ch/textes/d/D12216.php)