Grand Dukes of Oldenburg Gross-Herzöge von Oldenburg First holder Peter I, grand duke of Oldenburg * 1755 Records #4 Holders Family filter On/Off 1 Peter I, grand duke of Oldenburg * 1755 2 Paul Friedrich August, grand duke of Oldenburg * 1783 3 Peter II, grand duke of Oldenburg * 1827 4 Friedrich-August, grand duke of Oldenburg * 1852 Corrections and Updates To suggest a correction or an update. Click Here
