# Czesław Jastrzębiec-Kozłowski

> Polish Esperantist (1894–1956)

**Wikidata**: [Q1753084](https://www.wikidata.org/wiki/Q1753084)  
**Source**: https://4ort.xyz/entity/czes-aw-jastrz-biec-koz-owski


## References

1. Czech National Authority Database
2. Virtual International Authority File
3. Sejm-Wielki.pl
4. Virtual Study of Theatre Institute