# Karl Heffner

> German painter (1849-1925)

**Wikidata**: [Q18508452](https://www.wikidata.org/wiki/Q18508452)  
**Source**: https://4ort.xyz/entity/karl-heffner


## References

1. Integrated Authority File
2. Catalogue of the Nationalmuseum
3. [Source](http://www.aucklandartgallery.com/explore-art-and-ideas/artist/1497/)
4. [Source](http://kulturnav.org/c4bad3b9-43ca-4c36-a1e7-089c5b060c02)
5. Union List of Artist Names
6. Virtual International Authority File
7. International Standard Name Identifier
8. [Union List of Artist Names](http://www.getty.edu/vow/ULANFullDisplay?find=&role=&nation=&subjectid=500025946)
9. [Répertoire des artistes](http://www.musee-orsay.fr/fr/espace-professionnels/professionnels/chercheurs/rech-rec-art-home/notice-artiste.html?nnumid=25357)
10. KulturNav
11. Artnet
12. National Gallery of Victoria
13. mutualart.com
14. Art UK painters database
15. RKDartists
16. [Benezit Dictionary of Artists](http://oxfordindex.oup.com/view/10.1093/benz/9780199773787.article.B00085278)
17. [artist list of the National Museum of Sweden. 2016](http://kulturnav.org/c4bad3b9-43ca-4c36-a1e7-089c5b060c02)