# Karl Christian Heyler

> 20 Apr 1755 - 30 Nov 1823

**Wikidata**: [Q39590745](https://www.wikidata.org/wiki/Q39590745)  
**Source**: https://4ort.xyz/entity/karl-christian-heyler


## References

1. IdRef
2. Catalog of the German National Library
3. Integrated Authority File