# Ella Tvrdková

> Czech opera singer

**Wikidata**: [Q70728424](https://www.wikidata.org/wiki/Q70728424)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ella_Tvrdková)  
**Source**: https://4ort.xyz/entity/ella-tvrdkov-


## References

1. Czech National Authority Database
2. [The Fine Art Archive](https://cs.isabart.org/person/15473)
3. Catalog of the German National Library
4. [regional database of the Regional Library of Highlands](https://tritius.kkvysociny.cz/authority/1069263)
5. Bayerisches Musiker-Lexikon Online
6. The Fine Art Archive