# Henry III, Duke of Brunswick-Grubenhagen

> Duke of Brunswick-Lüneburg and Prince of Grubenhagen

**Wikidata**: [Q89401](https://www.wikidata.org/wiki/Q89401)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Henry_III,_Duke_of_Brunswick-Grubenhagen)  
**Source**: https://4ort.xyz/entity/henry-iii-duke-of-brunswick-grubenhagen


## References

1. The Peerage
2. Integrated Authority File
3. Freebase Data Dumps. 2013
4. CERL Thesaurus
5. Sejm-Wielki.pl