# Otto Rieger

> Czech organ builder

**Wikidata**: [Q11801099](https://www.wikidata.org/wiki/Q11801099)  
**Source**: https://4ort.xyz/entity/otto-rieger-q11801099


## References

1. Czech National Authority Database
2. Österreichisches Musiklexikon Online
3. Catalog of the German National Library
4. Virtual International Authority File
5. [Source](http://www.musiklexikon.ac.at/ml/ml-beacon.txt)
6. Bibliography of the History of the Czech Lands