# Jan Ostrowski

> Polish historian

**Wikidata**: [Q11718598](https://www.wikidata.org/wiki/Q11718598)  
**Source**: https://4ort.xyz/entity/jan-ostrowski-q11718598


## References

1. BnF authorities
2. Polish Science
3. general catalog of BnF
4. Virtual International Authority File
5. CiNii Research
6. [BnF authorities](http://data.bnf.fr/ark:/12148/cb12052612m)
7. CONOR.SI
8. [archINFORM](https://www.archinform.net/service/wd_aiarch.php)
9. Sejm-Wielki.pl