Siemowit VI of Masovia
Siemowit VI of Płock, 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 jointly with his brother, since 1459 ruler over Gostynin.
From *.wikipedia.org,
General Info
.
Male
Date of Death
January 1st, 1462
Died Aged
-508
Star Sign
Capricorn
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