# Maria Olszewska

> German opera singer (1892-1969)

**Wikidata**: [Q121211](https://www.wikidata.org/wiki/Q121211)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Maria_Olszewska)  
**Source**: https://4ort.xyz/entity/maria-olszewska


## References

1. BnF authorities
2. Integrated Authority File
3. Czech National Authority Database
4. International Standard Name Identifier
5. MusicBrainz
6. Virtual International Authority File
7. Opera Vivra
8. filmportal.de
9. FemBio database