# Bolesław the Pious

> Duke of Greater Poland

**Wikidata**: [Q2452949](https://www.wikidata.org/wiki/Q2452949)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Bolesław_the_Pious)  
**Source**: https://4ort.xyz/entity/boles-aw-the-pious


## References

1. Czech National Authority Database
2. Virtual International Authority File
3. Integrated Authority File
4. Freebase Data Dumps. 2013
5. Sejm-Wielki.pl