# John Ernest I, Duke of Saxe-Weimar

> German duke

**Wikidata**: [Q69449](https://www.wikidata.org/wiki/Q69449)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/John_Ernest_I,_Duke_of_Saxe-Weimar)  
**Source**: https://4ort.xyz/entity/john-ernest-i-duke-of-saxe-weimar


## References

1. Integrated Authority File
2. [Source](http://www.die-fruchtbringende-gesellschaft.de/files/fg_beacon.txt)
3. The Peerage
4. Freebase Data Dumps. 2013
5. Virtual International Authority File
6. CERL Thesaurus