# Heinrich III.
**Wikidata**: [Q1384333](https://www.wikidata.org/wiki/Q1384333)  
**Source**: https://4ort.xyz/entity/heinrich-iii--q1384333


## References

1. Integrated Authority File
2. The Peerage
3. Genealogics
4. Catalog of the German National Library
5. CERL Thesaurus