# Ruth Siewert

> German contralto and voice teacher

**Wikidata**: [Q33026265](https://www.wikidata.org/wiki/Q33026265)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ruth_Siewert)  
**Source**: https://4ort.xyz/entity/ruth-siewert


## References

1. Integrated Authority File
2. Virtual International Authority File
3. MusicBrainz
4. BnF authorities
5. NUKAT
6. MAK
7. datos.bne.es
8. National Library of Israel Names and Subjects Authority File