# Marian Kazimierz Olszewski
**Wikidata**: [Q19758453](https://www.wikidata.org/wiki/Q19758453)  
**Source**: https://4ort.xyz/entity/marian-kazimierz-olszewski


## References

1. Integrated Authority File
2. Czech National Authority Database
3. Artists of the World Online
4. Internetowy Polski Słownik Biograficzny
5. Virtual International Authority File
6. Sejm-Wielki.pl