World Library  
Flag as Inappropriate
Email this Article

Boleslaus I of Masovia

Article Id: WHEBN0024865438
Reproduction Date:

Title: Boleslaus I of Masovia  
Author: World Heritage Encyclopedia
Language: English
Subject: Bolesław V the Chaste, Duke of Masovia, Konrad I of Masovia, Boleslaus of Masovia, Duchy of Masovia, Duchy of Sieradz
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Boleslaus I of Masovia

Boleslaw I of Masovia (Polish: Bolesław I Mazowiecki) (1208 – spring 1248), a member of the Polish House of Piast, was the eldest son of Konrad I of Masovia and of Konrad's wife Agafia of Rus.

He was the Duke of Sandomierz (he reigned over part of the duchy) from 1229 to 1232. In 1233 he became the Duke Northern Masovia and in 1247 he inherited all of the Duchy of Masovia.

Life

From a young age, Boleslaw became part of ambitious political projects involving his father. In 1227, after the assassination of the High Duke of Poland Leszek I the White, he accompanied his father to Lesser Poland to participate in negotiations on the succession. Władysław III Spindleshanks had plans to seize the Duchy of Cracow from Masovia. Despite this setback, Konrad gave his son the stronghold of Dobrzyń nad Wisłą. In 1229 Konrad took a part of the Duchy of Sandomierz with the city of Radom; Konrad offered this in exchange for Boleslaw giving Dobrzyń nad Wisłą to Konrad's other son, Siemowit. In 1231, Boleslaw became involved with his father and brothers in the installation of the Teutonic Knights in the region of Chełmno Land. At the same time, Boleslaw supported his father in the war to conquer Cracow, after the death of Władysław III in 1231. In 1232 Henry I the Bearded (High Duke of Poland from 1232 to 1238) invaded Masovia by Prussians forced to abandon Konrad. In addition, Henry I the Bearded assumed control of the entire Duchy of Sandomierz.

To compensate for the loss of the Duchy of Sandomierz, Konrad offered Boleslaw part of Masovia, with Sieradz, the capital. Nevertheless, Konrad retained control of foreign policy and of the army. In 1234, Boleslaw won the north of Masovia in exchange for the region of Sieradz, near Lesser Poland and strategically important for his father who aimed to become Duke of Kraków. In subsequent years, Boleslaw attacked his Prussian and Russian neighbors. He installed the Order of Dobrin in Drohiczyn. In 1238 he took part in the war against Daniel of Galicia and Mindaugas of Lithuania.

In 1241, after the death of his father-in-law Henry II the Pious at the Battle of Legnica, Boleslaw maintained his father's military seizure of Kraków. He was expelled two years later.

On 31 August 1247, Konrad died; this opened new horizons for Boleslaw. In Konrad's will, he received most of Masovia. He faced an assault from his brother Casimir I of Kuyavia because Casimir was unhappy with the size of Boleslaw's inheritance. Casimir chased after his brothers, Boleslaw and Siemowit and Dobrzyń nad nad Wisla.

Boleslaw died shortly after the spring 1248. In his will he bequeathed all his possessions to his younger brother Siemowit. This however annoyed Casimir, and so wars continued between the brothers.[1]

Marriages

Boleslaw I of Masovia married twice. Firstly he wed Gertrude, daughter of Henry II the Pious in 1234. Gertrude died ten years later; the couple had no children. Two years later in 1246, Boleslaw married Anastasia, daughter of Prince Alexander of Belz. This marriage also remained childless.

References

Preceded by
Konrad I
Duke of Masovia
1247–1248
Succeeded by
Siemowit I
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.