# Friedrich Köppen

> German philosopher

**Wikidata**: [Q4251434](https://www.wikidata.org/wiki/Q4251434)  
**Source**: https://4ort.xyz/entity/friedrich-k-ppen-q4251434


## References

1. Allgemeine Deutsche Biographie
2. Integrated Authority File
3. Virtual International Authority File
4. CONOR.SI
5. CERL Thesaurus
6. Library of Congress Control Number