# Pierre Helderman
**Wikidata**: [Q114833112](https://www.wikidata.org/wiki/Q114833112)  
**Source**: https://4ort.xyz/entity/pierre-helderman


## References

1. [Source](https://digitaalmonument.oranjehotel.org/nl/person/1627740408/pieter-cornelis-helderman/)