# Bolko II of Opole

> Duke of Opole

**Wikidata**: [Q571012](https://www.wikidata.org/wiki/Q571012)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Bolko_II_of_Opole)  
**Source**: https://4ort.xyz/entity/bolko-ii-of-opole


## References

1. The Peerage
2. Genealogics
3. Integrated Authority File
4. Freebase Data Dumps. 2013
5. CERL Thesaurus
6. Sejm-Wielki.pl