# Johann Leonhardt
**Wikidata**: [Q94820940](https://www.wikidata.org/wiki/Q94820940)  
**Source**: https://4ort.xyz/entity/johann-leonhardt


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. [Österreichisches Biographisches Lexikon 1815–1950](https://www.biographien.ac.at/oebl/oebl_L/Leonhardt_Johann_1859_1928.xml)