# Helene Dolgoruki

> Grand Mother of Madam Blavatsky

**Wikidata**: [Q7244636](https://www.wikidata.org/wiki/Q7244636)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Helene_Dolgoruki)  
**Source**: https://4ort.xyz/entity/helene-dolgoruki


## References

1. Genealogics
2. FactGrid