# Wilhelm Siemen
**Wikidata**: [Q62571543](https://www.wikidata.org/wiki/Q62571543)  
**Source**: https://4ort.xyz/entity/wilhelm-siemen


## References

1. BnF authorities
2. Integrated Authority File
3. VIAF ID
4. NUKAT
5. Bibliography of the History of the Czech Lands
6. Czech National Authority Database
7. Virtual International Authority File