# Jan Ympyn

> Ympyn, Jan (c.1485–1540), merchant and author of a text on double entry accounting

**Wikidata**: [Q18529942](https://www.wikidata.org/wiki/Q18529942)  
**Source**: https://4ort.xyz/entity/jan-ympyn


## References

1. Faceted Application of Subject Terminology
2. Virtual International Authority File
3. BnF authorities
4. CERL Thesaurus
5. National Library of Israel Names and Subjects Authority File