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Agafia of Rus. Siemowit I of Masovia ( Polish: Siemowit (Ziemowit) I mazowiecki) (d. 23 June 1262), was a Polish prince member of the House of Piast, Duke of Czersk during 1247–1248, Duke of Masovia (except Dobrzyń) during 1248–1262, ruler over Sieradz during 1259–1260. He was the sixth son of Konrad I of Masovia and his wife Agafia of ...
Siemowit V of Masovia. Siemowit V of Rawa (pl: Siemowit V rawski; 1389 - 17 February 1442), was a Polish prince member of the House of Piast from the Masovian branch. He was a Duke of Rawa Mazowiecka, Płock, Sochaczew, Gostynin, Płońsk, Wizna and Belz during 1426-1434 jointly with his brothers, and after the division of the paternal ...
Margaret was a daughter of Siemowit III of Masovia and his wife Euphemia of Opawa. Her paternal grandparents were Trojden I of Masovia and his wife Maria, daughter of Yuri I of Galicia and Euphemia of Kuyavia. Life. In 1369 Margaret married her first husband Casimir IV, Duke of Pomerania, son of Bogislaw V, Duke of Pomerania and Elizabeth of ...
Siemowit I of Masovia (1224–1262), son of Konrad I of Masovia and his wife Agafia; Siemowit II of Masovia (1283–1345), son of Boleslaus II of Masovia and his first wife Sophie; Siemowit III of Masovia (ca. 1320–1381), son of Trojden I of Masovia and his wife Maria; Siemowit IV of Masovia (ca. 1352–1425 or 1426), son of Siemowit III and ...
Siemowit II's Seal, ca. 1345. Siemowit II of Rawa (pl: Siemowit II rawski; 1283 – 18 February 1345), was a Polish prince member of the House of Piast, Duke of Warsaw and Liw during 1310-1313, after a new division with his brothers since 1313 ruler over Rawa Mazowiecka, Sochaczew, Zakroczym, Gostynin, Ciechanów and Wizna, regent of Płock during 1336–1340.
About Prince Henry of Masovia. Henry of Masovia, born between 1368 and 1370 in Rawa Mazowiecka was the youngest child of one of the Piast dynasty princes of Masovia, Siemowit III of Masovia, and his second wife, the princess of Ziębice, Anna (or Ludmiła, sources vary). His childhood was rather tragic, as described by several contemporary ...
Siemowit III, Duke of Masovia. House of Piast. Polish nobleman. Also known as Siemowit III the Elder. Born in 1314 Died on 16 June 1381 in Masovian Voivodeship
