# Rudolf Ritter

> German singer (1878–1966)

**Wikidata**: [Q1712518](https://www.wikidata.org/wiki/Q1712518)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Rudolf_Ritter)  
**Source**: https://4ort.xyz/entity/rudolf-ritter


## References

1. Integrated Authority File
2. [Source](https://www.recherche.bar.admin.ch/recherche/#/archiv/einheit/4148)
3. general catalog of BnF
4. Virtual International Authority File
5. IMDb