# John III, Duke of Brittany

> Duke of Brittany

**Wikidata**: [Q259146](https://www.wikidata.org/wiki/Q259146)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/John_III,_Duke_of_Brittany)  
**Source**: https://4ort.xyz/entity/john-iii-duke-of-brittany


## References

1. Catalog of the German National Library
2. Freebase Data Dumps. 2013
3. CERL Thesaurus