# Karl Deffner

> German entrepreneur

**Wikidata**: [Q1037446](https://www.wikidata.org/wiki/Q1037446)  
**Source**: https://4ort.xyz/entity/karl-deffner


## References

1. Integrated Authority File
2. [Source](https://www.stadtarchiv-esslingen.findbuch.net/php/main.php#4530303237)
3. [Source](https://kalliope-verbund.info/DE-611-BF-123838)
4. CERL Thesaurus