# Petrus Haraldi Hummer
**Wikidata**: [Q110060682](https://www.wikidata.org/wiki/Q110060682)  
**Source**: https://4ort.xyz/entity/petrus-haraldi-hummer


## References

1. Östgötars minne
2. [ArkivDigital online](https://app.arkivdigital.se/volume/v38774?image=147)