# Wilhelm Friedrich
**Wikidata**: [Q112551248](https://www.wikidata.org/wiki/Q112551248)  
**Source**: https://4ort.xyz/entity/wilhelm-friedrich-q112551248


## References

1. Czech National Authority Database
2. Virtual International Authority File
3. [Source](https://kalliope-verbund.info/DE-611-BF-89111)
4. Integrated Authority File