# Jan Olgierd Czarnowski
**Wikidata**: [Q100278451](https://www.wikidata.org/wiki/Q100278451)  
**Source**: https://4ort.xyz/entity/jan-olgierd-czarnowski


## References

1. BnF authorities
2. Virtual International Authority File
3. Sejm-Wielki.pl
4. NUKAT
5. MAK