# Portrait of doctor Daniel Heinsius

> painting by Jacob van der Merck

**Wikidata**: [Q120917796](https://www.wikidata.org/wiki/Q120917796)  
**Source**: https://4ort.xyz/entity/portrait-of-doctor-daniel-heinsius


## References

1. [Source](https://bibliotheque-numerique.inha.fr/viewer/61408/?offset=#page=13&viewer=picture&o=bookmarks&n=0&q=)
2. [Source](https://archive.org/details/verzeichnissderg00olde/page/122/mode/1up)
3. [Source](https://commons.wikimedia.org/w/index.php?title=File:Schaetzung_der_Grossherzoglichen_Sammlung_im_Augusteum_zu_Oldenburg_17._bis_20._Oktober_1919.pdf&page=11)