# Bolesław IV of Warsaw

> Polish noble

**Wikidata**: [Q2349138](https://www.wikidata.org/wiki/Q2349138)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Bolesław_IV_of_Warsaw)  
**Source**: https://4ort.xyz/entity/boles-aw-iv-of-warsaw


## References

1. [Integrated Authority File](https://portal.dnb.de/opac.htm?method=simpleSearch&cqlMode=true&query=nid%3D1075932572)
2. CERL Thesaurus
3. Sejm-Wielki.pl