# Johann Heinrich Koopmann
**Wikidata**: [Q21459920](https://www.wikidata.org/wiki/Q21459920)  
**Source**: https://4ort.xyz/entity/johann-heinrich-koopmann


## References

1. RKDartists
2. askArt
3. Catalog of the German National Library
4. Virtual International Authority File
5. Johann Heinrich Koopmann. Art UK painters database
6. The Fine Art Archive
7. CERL Thesaurus
8. BnF authorities