# Jan of Czarnków

> Polish historian

**Wikidata**: [Q4121103](https://www.wikidata.org/wiki/Q4121103)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Jan_of_Czarnków)  
**Source**: https://4ort.xyz/entity/jan-of-czarnk-w


## References

1. Q123985090
2. Virtual International Authority File
3. Freebase Data Dumps. 2013