# Jan Ten Doornkaat Koolmann

> German entrepreneur and politician (1815-1889)

**Wikidata**: [Q1682420](https://www.wikidata.org/wiki/Q1682420)  
**Source**: https://4ort.xyz/entity/jan-ten-doornkaat-koolmann


## References

1. Integrated Authority File
2. International Standard Name Identifier
3. CERL Thesaurus
4. Virtual International Authority File