Wikipedia:

http://en.wikipedia.org/wiki/Ziemowit_IV,_Duke_of_Masovia

Siemowit IV, Duke of Masovia

From Wikipedia, the free encyclopedia

 (Redirected from Ziemowit IV, Duke of Masovia)

Jump to:navigation, search

Question book-new.svg

This article needs additional citations for verification.

Please help improve this article by adding reliable references. Unsourced material may be challenged and removed. (February 2008)

Division of Masovia (1381–1426)

Siemowit IV (also known as Ziemowit IV) (b. ca. 1353/1356[1], d. January 21, 1426[2]) was one of the Dukes of Masovia. His domain included the lands of Czersk, Rawa, Sochaczew, Płock and Gostynin. In 1381 he inherited Wisz and in 1387 Bełz. Siemowit IV was a son of Siemowit III. After the death of Ludwik Węgierski he was one of the pretenders to the Polish throne. In 1383 he conquered Cuyavia, but was soon expelled by the joint forces of szlachta from Lesser Poland and armies of Hungary. In 1386 he accepted the rule of Grand Duke of Lithuania and King of Poland Jogaila and became a hereditary vassal of Poland. The following year he married the sister of the Polish king, Aleksandra, and received the land of Bełz.

He lost much of his domain to the Teutonic Order, including Wizna, Zawkrze and Płońsk. To get it back, he took part in the war of 1409–1410 between Poland, Lithuania and the Teutonic Order. During the Battle of Grunwald he fielded three banners of his own troops, fighting alongside the Poles.

  1. ^ Kazimierz Jasiński: Rodowód Piastów mazowieckich. Poznań - Wrocław 1998, p. 87-88.

  2. ^ Kazimierz Jasiński: Rodowód Piastów mazowieckich. Poznań - Wrocław 1998, p. 88-89.

-------------------- Siemowit IV (Ziemowit) – od 1373/1374 w Rawie, od 1381 r. w wyniku podziału, książę na Rawie, Płocku, Sochaczewie, Gostyninie, Płońsku i Wiźnie, od 1386 r. dziedziczny lennik Polski, od 1388 r. w Bełzie, strata ziemi wiskiej w latach 1382-1401, strata Zawkrza w latach 1384-1399 i 1407-1411, strata Płońska w latach 1384-1399 na rzecz zakonu krzyżackiego. http://pl.wikipedia.org/wiki/Siemowit_IV