# Antonín Tvrdý
**Wikidata**: [Q109877301](https://www.wikidata.org/wiki/Q109877301)  
**Source**: https://4ort.xyz/entity/anton-n-tvrd-


## References

1. Czech National Authority Database
2. Virtual International Authority File
3. The Fine Art Archive
4. Slovník českých nakladatelství 1848–1949
5. Bibliography of the History of the Czech Lands
6. [Source](http://en.isabart.org/person/21133)