Siemowit III, Duke of Masovia
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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.
Siemowit III | |
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Duke of Masovia | |
Born | c. 1320 |
Died | (1381-06-16)16 June 1381 |
Buried | Plock cathedral |
Noble family | Piast |
Spouse(s) | Euphemia of Opava Anna of Ziębice |
Issue | Euphemia Anna Janusz I of Warsaw Margaret Siemowit IV of Masovia Henry of Masovia |
Father | Trojden I of Masovia |
Mother | Maria of Galicia |
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