# John Frederick, Duke of Württemberg

> Duke of Württemberg (1582-1628)

**Wikidata**: [Q302942](https://www.wikidata.org/wiki/Q302942)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/John_Frederick,_Duke_of_Württemberg)  
**Source**: https://4ort.xyz/entity/john-frederick-duke-of-w-rttemberg


## References

1. Integrated Authority File
2. LIBRIS. 2012
3. International Standard Name Identifier
4. Virtual International Authority File
5. BnF authorities
6. SNAC
7. The Peerage
8. Freebase Data Dumps. 2013
9. IdRef
10. CERL Thesaurus
11. Sejm-Wielki.pl