# Sigmund Jakob Seyfried
**Wikidata**: [Q55900795](https://www.wikidata.org/wiki/Q55900795)  
**Source**: https://4ort.xyz/entity/sigmund-jakob-seyfried


## References

1. CERL Thesaurus
2. Catalog of the German National Library
3. [Source](http://thesaurus.cerl.org/record/cnp01086984)