# Jacek Chachaj

> Polish historian

**Wikidata**: [Q24431114](https://www.wikidata.org/wiki/Q24431114)  
**Source**: https://4ort.xyz/entity/jacek-chachaj


## References

1. Integrated Authority File
2. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
3. Virtual International Authority File
4. Polish Science
5. Czech National Authority Database
6. [Source](https://nauka-polska.pl/#/profile/scientist?id=116470)