Siemowit IV (Ziemowit IV), also known as Siemowit IV the Younger (pl: Siemowit IV Młodszy; ca. 1353/1356 – 21 January 1426), was a Polish prince, member...

Poland and Bohemia. Some historians believe that Siemowit rendered a tribute of vassalage to Charles IV, Holy Roman Emperor in 1346. Other historians say...

married Siemowit IV, Duke of Masovia, and had thirteen children with him. On 12 December 1385, few months after the Union of Krewo, Siemowit IV, Duke of...

but did not send her to Kraków to be crowned. During the interregnum, Siemowit IV, Duke of Masovia, became a candidate for the Polish throne. The nobility...

Kežmarok. After 1420 Siemowit IV, due to his progressive blindness, gradually gave participation in the government to his oldest sons, Siemowit V and Casimir...

his brothers in 1434, sole ruler over Belz. He was the third son of Siemowit IV, Duke of Masovia and Alexandra of Lithuania, daughter of Algirdas. As...

Empire] (in German). Vol. 51. p. 54 – via Wikisource. Supruniuk, Anna. "Siemowit IV". Internetowy Polski Słownik Biograficzny [Internet Polish Biographical...

located in the Płock Voivodeship in the Greater Poland Province. In 1400, Siemowit IV of Masovia, granted it town rights under Chełmno law, then merchants...

family survived in the male line. She was the second daughter of Duke Siemowit IV, a scion of the Masovian branch of the Piasts, and his consort Alexandra...

Kingdom of Poland. Siemowit II of Masovia (1313-1345) Siemowit III and Casimir I of Warsaw (1341–1349) Siemowit III (1349–1370) Siemowit IV (1381–1426) Trojden...

residence to Warsaw, followed by his grandson Duke Boleslaus IV (1429–1454) Siemowit IV, Duke at Rawa and Płock (until 1426), also Duke of Belz from 1388...

(† 1409), daughter of Siemowit III of Masovia and Eufemia of Toppau (I) Elisabeth of Pomerania (* 1347; † 15.2.1393) ∞ Charles IV, Holy Roman Emperor (I)...

son of Siemowit III and his wife Euphemia Siemowit V of Masovia (1388–1442), son of Siemowit IV and his wife Alexandra of Lithuania Siemowit VI of Masovia...

Wenceslaus I, Duke (1313–1336) Siemowit II, Regent (1336–1340) Trojden I, Regent (1336–1340) Bolesław III, Duke (1336–1351) Siemowit IV the Younger, Duke of Płock...

times Michael was married to two daughters of Alexandra of Lithuania and Siemowit IV, Duke of Masovia: Anna and Catherine. In total he had three wives, all...

result of the partition of Masovia between him and his younger brother Siemowit IV after the death of their father on 16 June 1381, Janusz I finally obtain...

Zawkrze, Płońsk), but gained Bełz from Poland. Siemowit IV the Younger 1353 Second son of Siemowit III and Euphemia of Opava 16 June 1381 – 21 January...

Candidates for the throne included Mary's fiancé Sigismund of Luxembourg, Siemowit IV, Duke of Masovia, and Vladislaus II of Opole. Mary and her fiancé were...

his mother → Euphemia of Masovia, her father → Siemowit IV, Duke of Masovia, his father → Siemowit III, Duke of Masovia, his mother → Maria of Galicia...

Duke Siemowit IV granted town charter to Gostynin, and as a result, ancient gord, located on the left bank of the river declined. Siemowit IV expanded...

reunited all their patrimony (except Gostynin). He was the fifth son of Siemowit IV, Duke of Masovia and Alexandra of Lithuania, daughter of Algirdas. His...

granted Belz to Siemowit IV, Duke of Masovia, for his recognition of Masovia as a fiefdom of Poland and as a dowry for Siemowit's marriage with Jagiełło's...

reestablished in December 1381 from the part of the Duchy of Masovia under Siemowit IV rule. On 2 December 1382 its territory was pledged to the State of the...

William IV (German: Wilhelm IV; 13 November 1493 – 7 March 1550) was Duke of Bavaria from 1508 to 1550, until 1545 together with his younger brother Louis...

week from 24 to 30 June 1410. After the crossing, Masovian troops under Siemowit IV and Janusz I joined the Polish–Lithuanian army. The massive force began...

Ernest, Duke of Austria 13. Viridis Visconti 3. Margaret of Austria 14. Siemowit IV, Duke of Masovia 7. Cymburgis of Masovia 15. Alexandra of Lithuania...

relative, Zygmunt Korybut, Deputy Chancellor of the Crown, Mikołaj Trąba, Siemowit IV, Duke of Masovia. On the ground under Oleśnicki is the body of the German...

Ernest, Duke of Austria 21. Viridis Visconti 5. Margaret of Austria 22. Siemowit IV, Duke of Masovia 11. Cymburgis of Masovia 23. Alexandra of Lithuania...

Mecklenburg-Stargard Alexandra (after 1350 – 19 June 1434), wife of Siemowit IV, Duke of Masovia Jadwiga (after 1350 – after 1407), wife of Jan III of...

Holy Roman Empire. The Jagiellonian kings ruling after the death of Casimir IV of Poland were also descended in the female line from Casimir III's daughter...