# Otto Ernst, Graf von Schönburg
**Wikidata**: [Q21415972](https://www.wikidata.org/wiki/Q21415972)  
**Source**: https://4ort.xyz/entity/otto-ernst-graf-von-sch-nburg


## References

1. Catalog of the German National Library
2. Genealogics
3. [Source](http://saebi.isgv.de/gnd/102463654)