Johann II Oldenburg & Hedwig Diepholz 
They had a son named Konrad I.
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Personal Details
Johann II Oldenburg
Johann II was born about 1260 in Oldenburg, Germany. He died before 1294 in Oldenburg, Germany.
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Children
Konrad I Oldenburg
Konrad I was born about 1300 in Oldenburg, Germany. He died in 1347 in Oldenburg, Germany.
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