# Josef Sládeček
**Wikidata**: [Q15830266](https://www.wikidata.org/wiki/Q15830266)  
**Source**: https://4ort.xyz/entity/josef-sl-de-ek-q15830266


## References

1. [Collection of Registry Books at Prague State Archive](https://ebadatelna.soapraha.cz/d/10874/83#)
2. BillionGraves
3. Virtual International Authority File
4. Czech National Authority Database
5. [Prague City Archives](http://katalog.ahmp.cz/pragapublica/permalink?xid=DEB9AF4E518A486C9D7E3D5132ACA80F&scan=172#scan172)