# Josef Rychna
**Wikidata**: [Q95437197](https://www.wikidata.org/wiki/Q95437197)  
**Source**: https://4ort.xyz/entity/josef-rychna


## References

1. Czech National Authority Database
2. [Collection of Registry Books at Prague City Archives](http://katalog.ahmp.cz/pragapublica/permalink?xid=9036533DB37043EC8A6D35B59F0B8FB4&scan=154#scan154)
3. Virtual International Authority File