Johann I Count Of OLDENBURG & Richza Countess Of HOYA 
They had four sons and a daughter, named Christian III Or V Count Of, Heinrich Count Of, Moritz Count Of, Otto II Count Of and Hedwig Countess Of.
Family Notes
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Personal Details
Johann I Count Of OLDENBURG
Johann I Count Of was born about 1206 in Of, Oldenburg, Oldenburg, Germany. He died in 1270.
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Children
Christian III Or V Count Of OLDENBURG
Christian III Or V Count Of was born about 1228 in Of, Oldenburg, Oldenburg, Germany. He died in 1285.
Hedwig Countess Of OLDENBURG
Hedwig Countess Of was born about 1232 in Of, Oldenburg, Oldenburg, Germany.
Heinrich Count Of OLDENBURG
Heinrich Count Of was born about 1234 in Of, Oldenburg, Oldenburg, Germany.
Moritz Count Of OLDENBURG
Moritz Count Of was born about 1236 in Of, Oldenburg, Oldenburg, Germany. He died in 1319.
Otto II Count Of OLDENBURG-DELMENHORST
Otto II Count Of was born about 1238 in Of, Oldenburg, Oldenburg, Germany. He died on February 2nd, 1304.