# Ernest I

> Duke of Swabia from 1012 to 1015

**Wikidata**: [Q63307](https://www.wikidata.org/wiki/Q63307)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ernest_I,_Duke_of_Swabia)  
**Source**: https://4ort.xyz/entity/ernest-i


## References

1. The Peerage
2. Integrated Authority File
3. Virtual International Authority File
4. Find a Grave
5. Freebase Data Dumps. 2013
6. CERL Thesaurus
7. Sejm-Wielki.pl