# Leopold Hartmann
**Wikidata**: [Q107164604](https://www.wikidata.org/wiki/Q107164604)  
**Source**: https://4ort.xyz/entity/leopold-hartmann


## References

1. IdRef
2. Catalog of the German National Library
3. [Source](https://gepris-historisch.dfg.de/person/5104525)
4. National Library of Israel Names and Subjects Authority File