# Johann Jacob Frisius
**Wikidata**: [Q55131001](https://www.wikidata.org/wiki/Q55131001)  
**Source**: https://4ort.xyz/entity/johann-jacob-frisius


## References

1. Deutsche Biographie
2. Integrated Authority File
3. Catalog of the German National Library
4. Historical Dictionary of Switzerland
5. VcBA (identifier)
6. MAK
7. Virtual International Authority File