# Friedrich von Hahn
**Wikidata**: [Q1463751](https://www.wikidata.org/wiki/Q1463751)  
**Source**: https://4ort.xyz/entity/friedrich-von-hahn-q1463751


## References

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