# Helene of Brunswick-Lüneburg

> (1223-1273)

**Wikidata**: [Q3721523](https://www.wikidata.org/wiki/Q3721523)  
**Source**: https://4ort.xyz/entity/helene-of-brunswick-l-neburg


## References

1. The Peerage
2. Dictionary of Women Worldwide
3. [Source](https://www.geni.com/profile/index/6000000003771781380)
4. Sejm-Wielki.pl