Person
Siemowit VI of Masovia
Siemowit VI of Masovia was a Piast duke who, with his younger brother Władysław II, inherited the lands of Płock, Rawa, Gostynin and other districts of western Masovia as a child in 1455, at first under the regency of their mother. He died unmarried on 1 January 1462, and his brother's death weeks later ended the line, allowing King Casimir IV to take Rawa and Gostynin into the Polish Crown.
Cite this entry
- APA
- The Epoch Institute. (2026). Siemowit VI of Masovia. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/siemowit-vi-of-masovia
- MLA
- “Siemowit VI of Masovia.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/siemowit-vi-of-masovia. Accessed .
- Chicago
- The Epoch Institute. “Siemowit VI of Masovia.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/siemowit-vi-of-masovia.
- Harvard
- The Epoch Institute (2026) ‘Siemowit VI of Masovia’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/siemowit-vi-of-masovia (Accessed: ).
Last reviewed October 2026Random entry ↻