# Frederick I of Liegnitz

> Duke of Chojnów, Strzelin, Oława, Legnica, Brzeg and Lubin

**Wikidata**: [Q479920](https://www.wikidata.org/wiki/Q479920)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Frederick_I_of_Liegnitz)  
**Source**: https://4ort.xyz/entity/frederick-i-of-liegnitz


## References

1. Virtual International Authority File
2. WikiTree
3. Integrated Authority File
4. CERL Thesaurus
5. Freebase Data Dumps. 2013
6. Sejm-Wielki.pl