# Josef Jan Hais
**Wikidata**: [Q1704908](https://www.wikidata.org/wiki/Q1704908)  
**Source**: https://4ort.xyz/entity/josef-jan-hais


## References

1. The Fine Art Archive
2. [regional database of the  Research Library in Hradec Králové](https://aleph.svkhk.cz/F/?func=direct&doc_number=000000557&local_base=hka10&format=999)
3. Czech National Authority Database
4. Catholic-Hierarchy.org
5. [regional database of the  Research Library in Hradec Králové](https://www.svkhk.cz/tools/vyroci.asp?zobr=fulllist)
6. [regional database of the Municipal Library of Hradec Kralove](https://kmhk.tritius.cz/authority/1854642)
7. Bibliography of the History of the Czech Lands