# Jan Mrazík
**Wikidata**: [Q95150633](https://www.wikidata.org/wiki/Q95150633)  
**Source**: https://4ort.xyz/entity/jan-mraz-k


## References

1. Czech National Authority Database
2. Regional Database of the Central Bohemian Research Library in Kladno
3. [REGO](https://aleph.vkol.cz/F/?func=find-c&ccl_term=sys=000007125&local_base=svk04)
4. [Collection of Registry Books at Prague City Archives](http://katalog.ahmp.cz/pragapublica/permalink?xid=7F8CC5F648864CDF99B7E443A2227804&scan=75#scan75)
5. Virtual International Authority File
6. Provenio
7. Bibliography of the History of the Czech Lands