# Piotr Długołęcki

> Polish historian

**Wikidata**: [Q119722730](https://www.wikidata.org/wiki/Q119722730)  
**Source**: https://4ort.xyz/entity/piotr-d-ugo-cki


## References

1. Catalogue of the Library of the Pontifical University of the Holy Cross
2. Czech National Authority Database
3. NUKAT
4. Virtual International Authority File
5. CiNii Research