# Erwein II. Fürst von der Leyen
**Wikidata**: [Q55854889](https://www.wikidata.org/wiki/Q55854889)  
**Source**: https://4ort.xyz/entity/erwein-ii-f-rst-von-der-leyen


## References

1. Integrated Authority File
2. Deutsche Biographie
3. Catalog of the German National Library