# Leonhard Koppelmann

> German author and director

**Wikidata**: [Q1819234](https://www.wikidata.org/wiki/Q1819234)  
**Source**: https://4ort.xyz/entity/leonhard-koppelmann


## References

1. Integrated Authority File
2. Virtual International Authority File
3. MusicBrainz
4. Virtual Study of Theatre Institute