# Heinrich Appenzeller
**Wikidata**: [Q69472025](https://www.wikidata.org/wiki/Q69472025)  
**Source**: https://4ort.xyz/entity/heinrich-appenzeller


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. [Source](https://zbcollections.ch/home/#/content/4023b1c5bf7d441bb868757d8f8c4bd2)
4. Répertoire International des Sources Musicales