# Karel Friesl
**Wikidata**: [Q95378564](https://www.wikidata.org/wiki/Q95378564)  
**Source**: https://4ort.xyz/entity/karel-friesl


## References

1. Czech National Authority Database
2. [regional database of the Pilsen City Library](https://tritius.plzen.eu/authority/129438)
3. Virtual International Authority File
4. CiNii Research
5. Český hudební slovník osob a institucí
6. Bibliography of the History of the Czech Lands