# Johannes Geffcken

> German theologian (1803–1864)

**Wikidata**: [Q1697547](https://www.wikidata.org/wiki/Q1697547)  
**Source**: https://4ort.xyz/entity/johannes-geffcken-q1697547


## References

1. Integrated Authority File
2. Czech National Authority Database
3. International Standard Name Identifier
4. Virtual International Authority File
5. [Source](https://kalliope-verbund.info/DE-611-BF-89009)
6. BnF authorities