# Johann I. von Hallwyl

> before 1305 - 31 May 1348

**Wikidata**: [Q94865972](https://www.wikidata.org/wiki/Q94865972)  
**Source**: https://4ort.xyz/entity/johann-i-von-hallwyl


## References

1. Genealogics
2. Integrated Authority File
3. Deutsche Biographie
4. Catalog of the German National Library
5. Historical Dictionary of Switzerland