# Rudolf Usinger

> German historian (1835–1874)

**Wikidata**: [Q91349](https://www.wikidata.org/wiki/Q91349)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Rudolf_Usinger)  
**Source**: https://4ort.xyz/entity/rudolf-usinger


## References

1. BnF authorities
2. Integrated Authority File
3. Virtual International Authority File
4. CiNii Research