X-Nico

Anthony I, Count of Oldenburg

Anthony I, Count of Oldenburg and Delmenhorst (1505 – 22 January 1573 in Oldenburg) was a member of the House of Oldenburg and was the Imperial Count of the Counties of Oldenburg and Delmenhorst within the Holy Roman Empire of German Nation.

Berum Castle

Adolph, the son of Count Gerhard VI of Oldenburg, was held captive at Berum Castle from 1465 to 1481 after Oldenburg had invaded East Frisia.

Christian III, Count of Oldenburg

Count Christian III of Oldenburg (first testified in 1269 in Oldenburg, – 1285 in Oldenburg) was a ruling Count of Oldenburg.

Christian V, Count of Oldenburg

After his father died in 1368, he ruled Oldenburg jointly with his elder brother Conrad II, and after Conrad II's deaths in 1386, with the latter's son Maurice II.

Christine Charlotte of Württemberg

Her major foreign policy success was a border treaty with Oldenburg on 22 December 1666.

Helvig of Schauenburg

Christian (1426–1481), who succeeded his father as Count of Oldenburg and Delmenhorst.

Holstein

Gottorp ducal share in Holstein and Schleswig, partitioned from ducal Holstein in 1544, acquired half of Haderslev share in 1580 (thus thereafter simply called ducal share), merged into the royal share in 1773 with its ruler receiving in return the prior Danish-held County of Oldenburg.

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In 1773, they exchanged the County of Oldenburg for the Gottorp lands in Holstein, bringing all of Holstein under their control.

John VII, Count of Oldenburg

Count John VII of Oldenburg and Delmenhorst (nicknamed "the Dike Builder"; 9 September 1540 in Oldenburg – 12 November 1603 in Oldenburg) was a member of the House of Oldenburg and was the ruling Count of County of Oldenburg from 1573 until his death.

Maria of Jever

A servant is said to have secretly eaten the food, so no suspicion would arise, until Maria's rightful heir, Count John VII of Oldenburg, had arrived.