# Casimir Martin Sosnowski
**Wikidata**: [Q96756239](https://www.wikidata.org/wiki/Q96756239)  
**Source**: https://4ort.xyz/entity/q96756239


## References

1. Sejm-Wielki.pl
2. [Source](https://www.ipsb.nina.gov.pl/a/biografia/helena-sosnowska-z-domu-goldspiegel)
3. Find a Grave
4. [Source](https://www.ipsb.nina.gov.pl/a/biografia/kazimierz-marcin-sosnowski)
5. NUKAT
6. BnF authorities
7. MAK
8. Virtual International Authority File