# Josef Heja
**Wikidata**: [Q30061499](https://www.wikidata.org/wiki/Q30061499)  
**Source**: https://4ort.xyz/entity/josef-heja


## References

1. Czech National Authority Database
2. The Fine Art Archive
3. [Olomouc City Library regional database](https://tritius.kmol.cz/authority/771885)
4. Bibliography of the History of the Czech Lands