# Leopold Müller

> Singer and theatre director

**Wikidata**: [Q73546767](https://www.wikidata.org/wiki/Q73546767)  
**Source**: https://4ort.xyz/entity/leopold-m-ller-q73546767


## References

1. Österreichisches Biographisches Lexikon 1815–1950
2. Catalog of the German National Library
3. Integrated Authority File
4. Virtual International Authority File
5. Österreichisches Musiklexikon Online