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Konrad II's Seal, ca. 1285. Konrad II of Czersk (pl: Konrad II czerski; c. 1250 – 24 June/21 October 1294), was a Polish prince member of the House of Piast, Duke of Masovia during 1264-1275 jointly with his brother, after 1275 sole ruler over Czersk and Duke of Sandomierz during 1289.
Konrad I of Masovia (ca. 1187/88 [1] – 31 August 1247), from the Polish Piast dynasty, was the sixth Duke of Masovia and Kuyavia from 1194 until his death as well as High Duke of Poland from 1229 to 1232 and again from 1241 to 1243.
While Siemowit's son Duke Konrad II (1264–1294) moved his residence to Czersk he and his brother Bolesław II entered into a long-term conflict over the Polish seniorate with their Kujawy relatives and the Silesian Piasts, which estranged them from the Piast monarchy.
Jul 26, 2023 · From Wikipedia, the free encyclopedia. Konrad I of Masovia (Polish: Konrad I Mazowiecki; 1187? – 1247), son of Casimir II and Helen of Moravia, was the 6th Duke of Masovia. After his father's death in 1194, Konrad was brought up by his mother. In 1199 he received Masovia and in 1202, Kuyavia.
- Kraków, Małopolskie
- 1187
- "Kunigaikštis Konradas I Mazovietis"
- Kraków, Małopolskie, Poland
Jan 19, 2024 · 1226 Jan 1. Invitation from Masovia. Mazovia, Poland. In 1226, Konrad I, Duke of Masovia in north-eastern Poland, appealed to the Knights to defend his borders and subdue the pagan Baltic Old Prussians, allowing the Teutonic Knights use of Chełmno Land as a base for their campaign.
Sep 7, 2023 · Boleslaw II of Masovia or Boleslaw II of Płock (ca. 1251 – 20 April 1313). He was the younger brother Konrad II of Masovia and son of Siemowit I of Masovia. His mother was Pereyaslava [1], daughter of Daniel of Galicia. Boleslaus became Duke of Masovia in 1262.
Feb 16, 2024 · Konrad II of Masovia was the eldest son of Siemowit I of Masovia and his wife Perejesława, daughter of Daniel of Galicia. He was Duke of Masovia, he was also Duke of Czersk having given up some of his lands to his brother Boleslaus II of Masovia in 1275, he became Duke of Sandomierz in 1289.
