𝐇𝐞𝐫𝐳𝐨𝐠𝐥𝐢𝐜𝐡𝐞 𝐎𝐥𝐝𝐞𝐧𝐛𝐮𝐫𝐠𝐢𝐬𝐜𝐡𝐞 𝐀𝐫𝐦𝐞𝐞 The Duchy of Oldenburg was a state in Northern Germany during the Renaissance and Napoleonic periods. Thanks to careful diplomacy and skilful manoeuvring, the Duke of Oldenburg was allowed to keep his Duchy after the calamity of 1806. United with France and the other Rhine nations, the Duchy of Oldenburg's standard flies proudly above the battlefields of Europe. Join us today! Für den Herzog! Für das Vaterland! Hoorah!