# Jan Piwnik

> Polish Army officer (1912–1944)

**Wikidata**: [Q3848154](https://www.wikidata.org/wiki/Q3848154)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Jan_Piwnik)  
**Source**: https://4ort.xyz/entity/jan-piwnik


## References

1. International Standard Name Identifier
2. Integrated Authority File
3. Library of Congress Name Authority File
4. Virtual International Authority File
5. SUDOC
6. Internetowy Polski Słownik Biograficzny
7. Sejm-Wielki.pl