# Jan Kupiec
**Wikidata**: [Q11718196](https://www.wikidata.org/wiki/Q11718196)  
**Source**: https://4ort.xyz/entity/jan-kupiec-q11718196


## References

1. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
2. Virtual International Authority File
3. Library of Congress Authorities
4. Sejm-Wielki.pl