# Karl Metzner
**Wikidata**: [Q94833381](https://www.wikidata.org/wiki/Q94833381)  
**Source**: https://4ort.xyz/entity/karl-metzner-q94833381


## References

1. Integrated Authority File
2. Czech National Authority Database
3. Catalog of the German National Library
4. Österreichisches Biographisches Lexikon 1815–1950
5. Deutsche Biographie
6. Bibliography of the History of the Czech Lands
7. [Österreichisches Biographisches Lexikon 1815–1950](https://www.biographien.ac.at/oebl/oebl_M/Metzner_Karl_1880_1947.xml)