# Johann Jacob Ketteler

> Vikar in Köln

**Wikidata**: [Q55876046](https://www.wikidata.org/wiki/Q55876046)  
**Source**: https://4ort.xyz/entity/johann-jacob-ketteler


## References

1. Catalog of the German National Library
2. CERL Thesaurus
3. MAK
4. Virtual International Authority File
5. [Source](http://thesaurus.cerl.org/record/cnp00627308)