# Leon Janiszewski

> Polish writer (1810–1861)

**Wikidata**: [Q4538089](https://www.wikidata.org/wiki/Q4538089)  
**Source**: https://4ort.xyz/entity/leon-janiszewski


## References

1. Virtual International Authority File
2. NUKAT
3. MAK
4. Sejm-Wielki.pl