# Jan Čtvrtník
**Wikidata**: [Q95167454](https://www.wikidata.org/wiki/Q95167454)  
**Source**: https://4ort.xyz/entity/jan-tvrtn-k


## References

1. Czech National Authority Database
2. [The Fine Art Archive](https://cs.isabart.org/person/71155)
3. Virtual International Authority File
4. The Fine Art Archive
5. [Source](https://www.csfd.cz/tvurce/119401)