# Jaroslav Helfert

> Czech historian and nobleman (1883-1972)

**Wikidata**: [Q12023801](https://www.wikidata.org/wiki/Q12023801)  
**Source**: https://4ort.xyz/entity/jaroslav-helfert


## References

1. Database of the Terezín Memorial
2. [REGO](https://aleph.vkol.cz/F/?func=find-c&ccl_term=sys=000004291&local_base=svk04)
3. Czech National Authority Database
4. [The Fine Art Archive](https://cs.isabart.org/person/25435)
5. [regional database of the  Research Library in Hradec Králové](https://www.svkhk.cz/tools/vyroci.asp?zobr=fulllist)
6. Virtual International Authority File
7. The Fine Art Archive
8. Český hudební slovník osob a institucí
9. archINFORM
10. [Source](https://www.archinform.net/service/wd_aiarch.php)
11. Bibliography of the History of the Czech Lands