John I, Count of Oldenburg

Johann I von Oldenburg (c. 1204, † 1270 ) was Count of Oldenburg.

After the death of his father, Count Christian II in 1233, he initially followed alongside his uncle Otto I as Count of Oldenburg and ruled since 1251 alone.

In 1244 he founded, together with Otto I. the Cistercian monastery Rosenthal in Menslage that 1251 was moved to the Börsteler forest on an existing attachment of the counts.

1258/59 he made in favor of his cousin, Bremer pin feud with, argued with Rüstringen, Östringen and Stedingen, claiming his rights and new acquisitions.

He was in a dispute with the city of Bremen to the castle Berne and founded this together with his uncle Delmenhorst what Stedingen provoked.

Like his ancestors, he fought much with the Wild Hausener cousins. Ultimately, the County of Oldenburg was lost to the bishops of Münster and archbishops of Bremen, which was the reason for centuries of disputes with these spiritual powers, the Oldenburg- Delmenhorst increasingly neckdown.

Marriage and issue

He married Richza of Hoya, daughter of Count Henry II

• Heilwig ∞ Ekbert Count of Bentheim Tecklenburg († 1309/11 )
• Christian III. (Oldenburg ) (* 1250, † 1285)
• Moritz ( † 1319 ), pastor in Wildeshausen
• Otto II ( Oldenburg Delmenhorst ) ( † 1304)