# Q28005091

> painting by August Friedrich Oelenhainz

**Wikidata**: [Q28005091](https://www.wikidata.org/wiki/Q28005091)  
**Source**: https://4ort.xyz/entity/q28005091


## References

1. [Source](http://digital.belvedere.at/objects/4476/johann-nepomuk-reichsritter-von-humbourg)
2. [Source](https://digital.belvedere.at/objects/4476/johann-nepomuk-reichsritter-von-humbourg)