# Theodor Friedrich Haarbrücker
**Wikidata**: [Q94838494](https://www.wikidata.org/wiki/Q94838494)  
**Source**: https://4ort.xyz/entity/theodor-friedrich-haarbr-cker


## References

1. Catalog of the German National Library
2. Czech National Authority Database
3. Deutsche Biographie
4. Virtual International Authority File