# Jan Stanisław Kopczewski

> Polish historian

**Wikidata**: [Q26973292](https://www.wikidata.org/wiki/Q26973292)  
**Source**: https://4ort.xyz/entity/jan-stanis-aw-kopczewski


## References

1. IdRef
2. Virtual International Authority File
3. CiNii Research
4. MAK
5. Integrated Authority File