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Siemowit VI of Płock (pl: Siemowit VI płocki; 2 January 1446 - 31 December 1461/1 January 1462), was a Polish prince member of the House of Piast from the Masovian branch. He was a Duke of Płock, Rawa Mazowiecka, Belz, Płońsk, Zawkrze and Wizna during 1455-1461/62 (under regency until 1459) jointly with his brother, since 1459 ruler over ...
After the death of Siemowit VI on 31 December 1461/1 January 1462, Władysław II became in the sole ruler of their paternal domains; however, because he was still a minor, the regency was taken again by the Dowager Duchess Anna and Bishop Paweł of Płock.
Ziemowit VI / Siemowit VI: Son of Wladyslaw I. Duke of United Płock & Czersk. 1455 - 1461/62: Wladyslaw II: Brother. Joint-ruler of United Płock. 1459: Ziemowit's United Płock is reduced to Gostynin, while Kazimierz continues to rule a greater duchy of Płock. c.1462: Paul of Gizycko: Regent and bishop of United Płock and of Czersk. 1462
As a gesture of his friendly relationship with Poland, Władysław I and his brother Siemowit V attended the Confederation of Nowy Korczyn on 20 April 1438, where the princes strongly supported the political line of the Bishop (for example, the rejection of Prince Casimir to the Bohemian crown).
Apr 27, 2022 · As a gesture of his friendly relationship with Poland, Władysław I and his brother Siemowit V attended the Confederation of Nowy Korczyn on 20 April 1438, where the princes strongly supported the political line of the Bishop (for example, the rejection of Prince Casimir to the Bohemian crown).
- Warszawa, Mazowia
- Princess Anna of Olesnitsa
- Mazowia
Siemowit VI and Władysław II were dukes of Płock, Wizna, Zawkrze, Sochaczew, Gostyń, and Bełz. Various claimants to their duchies emerged, among whom Catherine, daughter of Siemowit IV and widow of Mykolas Žygimantaitis, and Margaret, duchess of Oleśnica, pursued their claims energetically.
Siemowit VI of Płock (pl: Siemowit VI płocki; 2 January 1446 - 31 December 1461/1 January 1462), was a Polish prince member of the House of Piast from the Masovian branch. He was a Duke of Płock , Rawa Mazowiecka , Belz , Płońsk , Zawkrze and Wizna during 1455-1461/62 (under regency until 1459) jointly with his brother, since 1459 ruler ...
