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Male Kazimierz I Prince Of Mazovia Click to view Kazimierz I Prince Of Mazovia in the family tree

Kazimierz I Prince Of was born in 1211 in Dobrzyn Nad W,Bydgoszcz,Poland,Poland.  Kazimierz I Prince Of's father was Konrad I Mazovia and his mother was Agafiya SVYATOSLAVICH.  His paternal grandparents were Kasimiriez II Sandomierz and Elena Rostislava Smolensk Kiev; his maternal grandparents were Svyatoslav Adrian IGOREVICH and Yaroslava RYURIKOVNA. He had two brothers and a sister, named Boleslaw I, Ziemowit I and Eudoksja.  He was the oldest of the four children.  He died at the age of 56 on December 14th, 1267 in Dobrzyn Nad W,Bydgoszcz,Poland,Poland.


Kazimierz I Prince Of's first family with Konstancja Princess Of Great Poland Silesia Breslau

‌Kazimierz I Prince Of and Konstancja Princess Of were married in a religious ceremony in 1239 in Wroclaw,Worclaw,Poland,Poland.  They had two sons and a daughter, named Leszek (The Black) Prince Of, Ziemomysl Prince Of and Adelajda Princess Of.


Kazimierz I Prince Of's second family with Eufrozyna Princess Of Great Poland Oppeln Ratibor

‌Kazimierz I Prince Of and Eufrozyna Princess Of were married in a religious ceremony in 1257 in Opole,Opole,Poland,Poland.  They had three sons and a daughter, named Wladislaw I (The Short) King Of, Kazimierz II Prince Of, Ziemowit Prince Of and Eufemia Princess Of.


Kazimierz I Prince Of's third family with Mrs-Jadwiga Princess Of Kujavia


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