# Ludwig Hardtmuth
**Wikidata**: [Q55851365](https://www.wikidata.org/wiki/Q55851365)  
**Source**: https://4ort.xyz/entity/ludwig-hardtmuth


## References

1. Biographical Dictionary of the History of the Czech Lands
2. Integrated Authority File
3. Catalog of the German National Library
4. Deutsche Biographie