# Pierre-Joseph Proudhon

> painting by Gustave Courbet

**Wikidata**: [Q17495002](https://www.wikidata.org/wiki/Q17495002)  
**Source**: https://4ort.xyz/entity/pierre-joseph-proudhon-q17495002


## References

1. [JocondeLab](http://jocondelab.iri-research.org/jocondelab/notice/54418/)