# Herz Abraham Leffmann
**Wikidata**: [Q94788538](https://www.wikidata.org/wiki/Q94788538)  
**Source**: https://4ort.xyz/entity/herz-abraham-leffmann


## References

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