# Leonard Niedźwiecki
**Wikidata**: [Q96059538](https://www.wikidata.org/wiki/Q96059538)  
**Source**: https://4ort.xyz/entity/leonard-nied-wiecki


## References

1. IdRef
2. Integrated Authority File
3. Virtual International Authority File
4. [Source](https://www.ipsb.nina.gov.pl/a/biografia/wiktor-leonard-niedzwiecki)
5. Sejm-Wielki.pl