Siemowit I Pereyaslava 
Konrad II Boleslav II Salomea Hanna
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| Konrad II Boleslav II Salomea Hanna
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Siemowit I
abt 1215, Czersk, Mazowieckie Poland - June 23, 1262, Jozdow, Warazawa, Mazowieskie Poland
Pereyaslava Danilova Romanowicz
1229, Halych-Volhynia Poland - April 12, 1283, Masovia Poland
Married: ?? - ??
Konrad II Czerski
abt 1248, Czersk, Mazowieckie Poland - June 23, 1294, Czersk, Mazowieckie Poland
Boleslav II, prince of Masovia
1254, Plock, Masovian Voivodeship Poland -
April 20, 1313, Wyszogrod, Plock, Masovian Voivodeship Poland
Salomea Siemowitowna
?? - 1301, Mazowieckie Poland
Hanna, princess of Masovia
abt 1260 - ??