# Jan Witkiewicz
**Wikidata**: [Q138225147](https://www.wikidata.org/wiki/Q138225147)  
**Source**: https://4ort.xyz/entity/jan-witkiewicz


## References

1. [Source](https://www.naleczow.com.pl/historia/jan-koszyc-witkiewicz/108-jan-witkiewicz.html)