# Václav Kopfstein-Penk
**Wikidata**: [Q95175202](https://www.wikidata.org/wiki/Q95175202)  
**Source**: https://4ort.xyz/entity/v-clav-kopfstein-penk


## References

1. Czech National Authority Database
2. Regional Database of the Central Bohemian Research Library in Kladno
3. Virtual International Authority File
4. [Source](https://kramerius.medvik.cz/search/handle/uuid:dd1f7e7e-dcf3-4c7d-837d-9ec767f27459)
5. Bibliography of the History of the Czech Lands