# Jan (John) Sigmund
**Wikidata**: [Q116238311](https://www.wikidata.org/wiki/Q116238311)  
**Source**: https://4ort.xyz/entity/jan-john-sigmund


## References

1. Database of members of the Czechoslovak Republic of military units abroad for the World War II
2. Czech National Authority Database
3. Geni.com
4. Virtual International Authority File
5. Encyclopedia of Brno History