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Siemowit III of Masovia (alternatively Ziemowit III; c. 1320 – 1381) was a prince of Masovia and a co-regent (with his brother Casimir I of Warsaw) of the lands of Warsaw, Czersk, Rawa, Gostynin and other parts of Masovia.
- Plock cathedral
- Maria of Galicia
As Boleslaus left no children, his younger brother Siemowit inherited his lands, reunifying two thirds of the main duchy. Siemowit was, however, killed in a battle against the Lithuanians, who also took his heir prisoner.
RulerRulerBornReign1093 Ehingen Daughter of Henry, Count of ...28 October 1138 – 27 July 1144Duchy of Masovia (at Łęczyca)1122 Third son of Boleslaus III of Poland ...28 October 1138 – 5 January 1173Regency of Casimir II of Poland ...Regency of Casimir II of Poland ...Regency of Casimir II of Poland ...Regency of Casimir II of Poland ...1162 Son of Boleslaus IV of Poland and ...5 January 1173 – 1186Upon the death of Duke Boleslaus II in 1313, Masovia was divided among his sons: Siemowit II became Duke at Rawa (until 1345) Trojden I became Duke at Czersk (until 1341) Wenceslaus became Duke at Płock (until 1336), followed by his son Bolesław III (until 1351)
- District principality
Oct 18, 2022 · iemowit III of Masovia (his name also rendered Ziemowit; c. 1320 – 1381) was a prince of Masovia and a co-regent (with his brother Casimir I of Warsaw) of the lands of Warsaw, Czersk, Rawa, Gostynin and other parts of Masovia. Life. Siemowit was the second son of Trojden I of Masovia and his wife Maria, daughter of Yuri I of Galicia.
Apr 27, 2022 · He was the second son of Siemowit III, Duke of Masovia and his first wife Euphemia, daughter of Nicholas II of Opava. ZIEMOWIT (before 1352-5 Dec 1425). He succeeded as Prince of Plock and Kujavia.
- Czersk, Mazowieckie
- Alexandra of Lithuania
- Mazowieckie
- "Ziemowit IV Młodszy"
From Wikimedia Commons, the free media repository. Siemowit III, Duke of Masovia. Polish nobleman. Upload media. Wikipedia. Date of birth. 1314 (statement with Gregorian date earlier than 1584) Date of death.
Siemowit III of Masovia (his name also rendered Ziemowit; c. 1320 – 1381) was a prince of Masovia and a co-regent (with his brother Casimir I of Warsaw) of the lands of Warsaw, Czersk, Rawa, Gostynin and other parts of Masovia.
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