# Willem de Sitter

> Dutch politician (1820–1889)

**Wikidata**: [Q2247883](https://www.wikidata.org/wiki/Q2247883)  
**Source**: https://4ort.xyz/entity/willem-de-sitter-q2247883


## References

1. RKDartists
2. Virtual International Authority File
3. Biografisch Portaal