# Josef Jan Frič

> Czech astronomist (1861–1945)

**Wikidata**: [Q7940578](https://www.wikidata.org/wiki/Q7940578)  
**Source**: https://4ort.xyz/entity/josef-jan-fri-


## References

1. Czech National Authority Database
2. Regional Database of the Central Bohemian Research Library in Kladno
3. The Fine Art Archive
4. [Collection of Registry Books at Prague City Archives](https://katalog.ahmp.cz/pragapublica/permalink?xid=686b60517d6140089addf5b7576877f9&scan=308#scan308)
5. [Collection of Registry Books at Prague City Archives](https://katalog.ahmp.cz/pragapublica/permalink?xid=4ec823218d664640a102a1e2472cd19d&scan=7#scan7)
6. BnF authorities
7. [Source](http://katalog.ahmp.cz/pragapublica/permalink?xid=F9EA0B900EE3492F907654B7E98B803E&scan=194#scan194)
8. BillionGraves
9. general catalog of BnF
10. Virtual International Authority File
11. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
12. [Collection of Registry Books at Prague City Archives](https://katalog.ahmp.cz/pragapublica/permalink?xid=73c9a7b9829847a2bee6a3003929ba02&scan=45#scan45)
13. FactGrid
14. Bibliography of the History of the Czech Lands