# Karl Theodor Prinz zu Isenburg
**Wikidata**: [Q55852894](https://www.wikidata.org/wiki/Q55852894)  
**Source**: https://4ort.xyz/entity/karl-theodor-prinz-zu-isenburg


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. Deutsche Biographie
4. Répertoire International des Sources Musicales