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Male Casimir I Of Kujavie Duke Click to view Casimir I Of Kujavie Duke in the family tree

Casimir I was born in 1211.  Casimir I's father was Konrad I Of Mazovia Prince and his mother was Agafia Swajatoslawna Of Novgorod.  His paternal grandparents were Kasimir II Of Little Poland Prince and Helena Rostislawna; his maternal grandfather is Sviatislav Of Vladimir Volinsk Prince. He had a brother named Ziemowit Ksiaz.


Casimir I's family with Euphrosine Of Schlesien-Oppeln

‌Casimir I and Euphrosine were married in a religious ceremony in 1257.  They had a daughter named Euphemie.

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