Otto I, Count of Oldenburg Peerage person ID=8393 (1175–1251) Parents Maurice, Count of Oldenburg Salome von Wickerode Children Salome von Oldenburg Heinrich von Oldenburg Siblings Christian II, Count of Oldenburg Kunigunde of Oldenburg Salome of Oldenburg Hedwig of Oldenburg Oda of Oldenburg Partners Mechtilde von Woldenberg