# Jan z Opavy
**Wikidata**: [Q12023301](https://www.wikidata.org/wiki/Q12023301)  
**Source**: https://4ort.xyz/entity/jan-z-opavy


## References

1. Czech National Authority Database
2. [Source](http://www.sapere.it/enciclopedia/Giovanni+da+Troppau.html)
3. Virtual International Authority File
4. Bibliography of the History of the Czech Lands