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.
Find a Grave, database and images (https://www.findagrave.com: accessed ), memorial page for Siemowit of Masovia II (unknown–18 Feb 1345), Find a Grave Memorial no. 158611788, citing Plock Cathedral, Płock, Miasto Płock, Mazowieckie, Poland ; Maintained by Todd Whitesides (contributor 47553735) .
Siemowit II of Masovia or Ziemowit (1283-18 February 1345) was Duke of Masovia from 1310-1345. He was a member of the House of Piast. Siemowit was Duke of Warsaw and Liw (1310-1313). In 1313, he...
Sep 18, 2020 · After 1420 Siemowit IV, due to his progressive blindness, gradually gave participation in the government to his adult sons. In 1425, the dispute about the election of his Chancellor Stanisław z Pawłowic as Bishop of Płock didn't brought anything good to Masovia, and only forced his sons Siemowit V and Casimir II into a humiliating surrender.
They had 3 children: Boleslaw II (House of Piast) Of Masovia Of Plock and 2 other children. Ziemowit passed away on month day 1262, at age 38 at death place . Ziemowit Plocki DUKE OF MAZOVIA, Circa 1350 - 1426 Ziemowit Plocki DUKE OF MAZOVIA 1350 1426
Siemowit IV (also known as Ziemowit IV) (ca. 1353/1356  – 21 January 1426 ) was one of the Dukes of Masovia of the old Polish Piast royal family. His domain included the lands of Czersk, Rawa, Sochaczew, Płock and Gostynin. In 1381 he inherited Wisz and in 1387 Bełz. Life. Siemowit IV was a son of Siemowit III.
Siemowit was the second son of Trojden I of Masovia and his wife Maria, daughter of Yuri I of Galicia. In 1341, following the death of their father and brother, Siemowit and his younger brother Casimir inherited the Duchy of Czersk. In 1345 following the death of their uncle Siemowit II of Rawa, they also inherited the Duchy of Rawa.
Siemowit IV Piast of Mazovia was born circa 1353 to Siemowit III of Masovia (bef1314-1381) and Euphemia of Troppau (c1320-1352) and died circa 21 January 1426 of unspecified causes. He married Alexandra of Lithuania (c1368-1434) circa 1387. Notable ancestors include Charlemagne (747-814), Alfred the Great (849-899), Hugh Capet (c940-996). Ancestors are from Russia, Ukraine, France, Germany ...
Siemowit was killed in battle against the Lithuanians on June 23, 1262 . Marriage and children. Siemowit married in 1248 to Pereyaslava , daughter of Daniel of Galicia. They had three children : Konrad II of Masovia (1248/50-23 June 1294), Prince of Masovia