# Jan O. Kralovec
**Wikidata**: [Q95454516](https://www.wikidata.org/wiki/Q95454516)  
**Source**: https://4ort.xyz/entity/jan-o-kralovec


## References

1. Czech National Authority Database
2. Regional Database of the Central Bohemian Research Library in Kladno
3. [Collection of Registry Books at Prague City Archives](http://katalog.ahmp.cz/pragapublica/permalink?xid=564BC88E35854581BA24D8A22E6430ED&scan=5#scan5)
4. Virtual International Authority File