# Jan Bratkowski
**Wikidata**: [Q109832581](https://www.wikidata.org/wiki/Q109832581)  
**Source**: https://4ort.xyz/entity/jan-bratkowski-q109832581


## References

1. Virtual International Authority File
2. BnF authorities
3. NUKAT
4. MAK
5. Bibliography of the History of the Czech Lands
6. Czech National Authority Database