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Male JOHANN I von OLDENBURG Click to view JOHANN I von OLDENBURG in the family tree

JOHANN I was born about 0990.1   JOHANN I's father was OTTO II von OLDENBURG.  His paternal grandfather was OTTO I von OLDENBURG.  He was an only child.  JOHANN I is no longer alive.


JOHANN I's family

He had a biological daughter named RICHIZA.

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