# August Freiherr von Vellnagel
**Wikidata**: [Q55896415](https://www.wikidata.org/wiki/Q55896415)  
**Source**: https://4ort.xyz/entity/august-freiherr-von-vellnagel


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. Deutsche Biographie
4. CERL Thesaurus