# Heinrich Holtzgreven
**Wikidata**: [Q107190064](https://www.wikidata.org/wiki/Q107190064)  
**Source**: https://4ort.xyz/entity/heinrich-holtzgreven


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. [Source](http://gutenberg-biographics.ub.uni-mainz.de/personen/register/eintrag/gesamt/heinrich-holtzgreven.html)