# Casimir I, Duke of Cieszyn

> noble

**Wikidata**: [Q689157](https://www.wikidata.org/wiki/Q689157)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Casimir_I,_Duke_of_Cieszyn)  
**Source**: https://4ort.xyz/entity/casimir-i-duke-of-cieszyn


## References

1. Integrated Authority File
2. Genealogics
3. Virtual International Authority File
4. Freebase Data Dumps. 2013
5. CERL Thesaurus
6. Sejm-Wielki.pl
7. [Bibliography of the History of the Czech Lands](https://biblio.hiu.cas.cz/records/77ef927b-59ed-4cea-9db1-df5cbf80130a)