# Willem de Groot
**Wikidata**: [Q33129643](https://www.wikidata.org/wiki/Q33129643)  
**Source**: https://4ort.xyz/entity/willem-de-groot-q33129643


## References

1. BnF authorities
2. Biografisch Portaal
3. [Source](http://digitale.beic.it/primo_library/libweb/action/search.do?fn=search&vid=BEIC&vl%283134987UI0%29=creator&vl%28freeText0%29=Groot%20Willem%20de)
4. LIBRIS. 2013