# Gerard van Keulen

> Instrument maker, publisher and cartographer (1678–1726)

**Wikidata**: [Q31209942](https://www.wikidata.org/wiki/Q31209942)  
**Source**: https://4ort.xyz/entity/gerard-van-keulen


## References

1. ECARTICO
2. BnF authorities
3. Repertorium van Nederlandse kaartmakers
4. Virtual International Authority File
5. Artnet
6. CERL Thesaurus
7. NUKAT
8. National Library of Portugal
9. datos.bne.es
10. Catalogue of the Unione Romana Biblioteche Scientifiche
11. [Source](https://hdl.handle.net/20.500.11840/137387)
12. Biografisch Portaal
13. [Geographicus Rare Antique Maps biographical dictionary of cartographers](https://www.geographicus.com/P/RareMaps/vankeulengerard)
14. NMVW-collection website
15. [1695](https://n2t.net/ark:/33862/collect/528718)
16. [Source](https://www.philamuseum.org/collections/results.html?searchTxt=&bSuggest=1&searchNameID=47891)
17. CollectieGelderland