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Konrad Januszowic (ca. 1400 - 9 December 1412 or 1413), was a Polish prince member of the House of Piast. He was the youngest son of Duke Janusz I of Warsaw and Danutė of Lithuania , a daughter of Kęstutis .
Stanisław of Masovia. Stanisław of Masovia (pl: Stanisław mazowiecki; 17 May 1501 [1] – 8 August 1524), was a Polish prince member of the House of Piast in the Masovian branch. He was a Duke of Czersk, Warsaw, Liw, Zakroczym and Nur during 1503-1524 (under regency until 1518) jointly with his brother.
Agafia of Rus. Bolesław I of Masovia ( Polish: Bolesław I Mazowiecki; 1208 – ca. 25 February 1248), was Polish prince member of the Polish House of Piast, Duke of Sandomierz (only a part) during 1229-1232, Duke of Dobrzyń during 1233-1247 and Duke over whole Masovia during 1247-1248. He was the second son of Konrad I of Masovia and Agafia ...
Konrad I of Masovia (ca. 1187/88 – 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.
Jan 19, 2024 · 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. This being a time of widespread crusading fervor throughout Western Europe, Hermann von Salza considered Prussia a ...
Janusz of Masovia might refer to these dukes: Janusz I of Warsaw (ca. 1347/1352 – 1429), son of Siemowit III; Janusz II of Masovia (1455–1495), son of Bolesław IV; Janusz III of Masovia (1502–1526), son of Konrad III Rudy, last male of the Masovian Piast dynasty
Leszek the White (Polish: Leszek Biały; c. 1184/85 – 24 November 1227) was Prince of Sandomierz and High Duke of Poland in the years 1194–1198, 1199, 1206–1210, and 1211–1227. During the early stages of his reign, his uncle Duke Mieszko III the Old and cousin Władysław III Spindleshanks , from the Greater Polish branch of the royal ...
