# Heinrich XVIII. Reuß zu Obergreiz
**Wikidata**: [Q105873027](https://www.wikidata.org/wiki/Q105873027)  
**Source**: https://4ort.xyz/entity/heinrich-xviii-reu-zu-obergreiz


## References

1. CERL Thesaurus
2. Rodovid
3. Catalog of the German National Library