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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 ...
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 ...
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.
Son of Bolesław IV. Duke of Płock. Abdicated. 1455 - 1461: 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
Date of birth: 2 January 1446, 11 January 1446: Date of death: 1 January 1462, 10 January 1462: Manner of death
Władysław I of Płock. Seal of Władysław I, 1435. Władysław I of Płock (1406/09 - 11/12 December 1455), was a Polish prince member of the House of Piast from the Masovian branch. He was a Duke of Płock, Rawa Mazowiecka, Gostynin, Sochaczew, Belz, Płońsk, Zawkrze and Wizna during 1426-1434 jointly with his brothers, after the division ...
Władysław II of Płock. Władysław II of Płock (pl: Władysław II płocki; aft. 31 October 1448 - 27 February 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 ...
