# Otto Detlefsen

> Danish opera singer (1881-1963)

**Wikidata**: [Q5620970](https://www.wikidata.org/wiki/Q5620970)  
**Source**: https://4ort.xyz/entity/otto-detlefsen


## References

1. Virtual International Authority File
2. danskefilm.dk
3. IMDb
4. [Source](http://uli.nli.org.il/F/?func=find-b&local_base=NLX10&find_code=UID&request=987007338018205171)
5. Česko-Slovenská filmová databáze