# Bolesław IV the Curly

_High Duke of Poland_

Canonical: https://diginpl.com/people/bolesaw-iv-the-curly
Last updated: 2026-11-08

> Bolesław IV the Curly, a member of the Piast dynasty, was Duke of Masovia from 1138 and High Duke of Poland from 1146 until his death in 1173.

## Quick facts

- **Born:** 1120 ([Wikidata](https://www.wikidata.org/wiki/Q53442#P569))
- **Died:** 5 January 1173 ([Wikidata](https://www.wikidata.org/wiki/Q53442#P570))
- **Place of death:** Kraków ([Wikidata](https://www.wikidata.org/wiki/Q53442#P20))
- **Citizenship:** Poland ([Wikidata](https://www.wikidata.org/wiki/Q53442#P27))
- **Occupation:** politician ([Wikidata](https://www.wikidata.org/wiki/Q53442#P106))
- **Spouse:** Maria; Viacheslava of Novgorod ([Wikidata](https://www.wikidata.org/wiki/Q53442#P26))
- **Positions held:** Duke of Masovia (1138–1173); King of Poland ([Wikidata](https://www.wikidata.org/wiki/Q53442#P39))

## Questions

**When was Bolesław IV the Curly born?**  
Bolesław IV the Curly was born on 1120.

**What positions has Bolesław IV the Curly held?**  
Positions held by Bolesław IV the Curly include: Duke of Masovia (1138–1173); King of Poland.

## Related

- [Casimir II the Just](https://diginpl.com/people/casimir-ii-the-just)
- [Konrad I of Masovia](https://diginpl.com/people/konrad-i-of-masovia)
- [John of Bohemia](https://diginpl.com/people/john-of-bohemia)
- [Mieszko II Lambert](https://diginpl.com/people/mieszko-ii-lambert)
- [Sigismund III Vasa](https://diginpl.com/people/sigismund-iii-vasa)
- [Augustus II the Strong](https://diginpl.com/people/augustus-ii-the-strong)
- [Augustus III of Poland](https://diginpl.com/people/augustus-iii-of-poland)
- [Bolesław I the Brave](https://diginpl.com/people/bolesaw-i-the-brave)

## Sources

- [Wikipedia (English): Bolesław IV the Curly](https://en.wikipedia.org/wiki/Boles%C5%82aw_IV_the_Curly) — [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)
- [Wikidata item Q53442](https://www.wikidata.org/wiki/Q53442) — [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/)
- [Image: Boleslaw IV Kedzierzawy (76848902) (cropped).jpg by Jan Matejko (Public domain)](https://commons.wikimedia.org/wiki/File:Boleslaw_IV_Kedzierzawy_(76848902)_(cropped).jpg)

## Licence and attribution

Text from the Wikipedia article Bolesław IV the Curly, licensed under CC BY-SA 4.0. This page's text is shared under the same licence. Facts from Wikidata (CC0). Image: Boleslaw IV Kedzierzawy (76848902) (cropped).jpg — Jan Matejko, Public domain.

## Cite this page

"Bolesław IV the Curly". DigiNepal. Last updated 8 November 2026. https://diginpl.com/people/bolesaw-iv-the-curly. Retrieved 9 November 2026.