John I, Count of Oldenburg

Count of Oldenburg (1204–1270)

Parents

• Christian II, Count of Oldenburg
• Agnes von Berg-Altena

Children

• Moritz of Oldenburg-Delmenhorst
• Otto II of Oldenburg-Delmenhorst
• Heinrich von Oldenburg-Delmenhorst
• Christian III, Count of Oldenburg
• Hedwig of Oldenburg and Delmenhorst

Siblings

• Otto of Oldenburg

Partners

• Richza von Hoya