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Male Johann I Brandenburg Click to view Johann I Brandenburg in the family tree

Johann I was born about 1213 in Brandenburg, Prussia.  Johann I's father was Albert II D'Ascanie and his mother was Matilda of Lower Lusatiania.  His paternal grandparents were Otto I of Brandenburg and Judith of Poland; his maternal grandparents were Konrad and Elzbieta. He had a brother and a sister, named Otto III and Mathilde.  He was the second oldest of the three children.  He died on April 4th, 1266 in Berlin, Brandenburg, Prussia.


Johann I's family with Jutta of Denmark

‌Johann I and Jutta of were married in a religious ceremony on May 7th, 1255.  They had a son and a daughter, named Henry I and Agnes.

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