# John Ernest, Duke of Saxe-Eisenach

> German duke

**Wikidata**: [Q68666](https://www.wikidata.org/wiki/Q68666)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/John_Ernest,_Duke_of_Saxe-Eisenach)  
**Source**: https://4ort.xyz/entity/john-ernest-duke-of-saxe-eisenach


## References

1. Integrated Authority File
2. RKDartists
3. The Peerage
4. International Standard Name Identifier
5. [Source](https://kalliope-verbund.info/DE-611-BF-97414)
6. Freebase Data Dumps. 2013
7. Virtual International Authority File
8. CERL Thesaurus
9. Sejm-Wielki.pl