Siemowit I of Masovia
Siemowit I of Masovia, was a Polish prince member of the House of Piast, Duke of Czersk during 1247-1248, Duke of Masovia during 1248-1262, ruler over Sieradz during 1259-1260.
From *.wikipedia.org,
General Info
.
Male
Date of Death
June 23rd, 1262
Died Aged
-707
Star Sign
Capricorn
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Relatives
Casimir I of Kuyavia
Brother
Konrad I of Masovia
Father
Agafia of Rus
Mother
Bolesław II of Masovia
Son
Bolesław I of Masovia
Brother
Pereiaslawa of Galicia
Wife
Konrad II of Masovia
Son
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