# Stefan Nieznanowski

> Polish historian

**Wikidata**: [Q9345244](https://www.wikidata.org/wiki/Q9345244)  
**Source**: https://4ort.xyz/entity/stefan-nieznanowski


## References

1. BnF authorities
2. Virtual International Authority File
3. [Source](https://centrum.fm/zmarl-profesor-stefan-nieznanowski-z-uniwersytetu-marii-curie-sklodowskiej)