# Johannes Siegfried
**Wikidata**: [Q55193365](https://www.wikidata.org/wiki/Q55193365)  
**Source**: https://4ort.xyz/entity/johannes-siegfried


## References

1. Integrated Authority File
2. Deutsche Biographie
3. Catalog of the German National Library
4. [Source](https://www.deutsche-biographie.de/sfz80213.html)