# Petrus Hubertus Marres
**Wikidata**: [Q55910773](https://www.wikidata.org/wiki/Q55910773)  
**Source**: https://4ort.xyz/entity/petrus-hubertus-marres


## References

1. Integrated Authority File
2. CERL Thesaurus
3. Catalog of the German National Library
4. Biografisch Portaal