# Marek Jan Olbrycht

> historian

**Wikidata**: [Q16574620](https://www.wikidata.org/wiki/Q16574620)  
**Source**: https://4ort.xyz/entity/marek-jan-olbrycht


## References

1. IdRef
2. [Source](https://nauka-polska.pl/#/profile/scientist?id=79919)
3. Polish Science
4. Library of Congress Authorities
5. National Library of Israel Names and Subjects Authority File