Wilhelm, Duke of Oldenburg
Peter Friedrich Wilhelm, Duke of Oldenburg, born 3 January 1754 at Eutin Castle in Eutin, died 2 July 1823 at Schloss Plön in Plön. Wilhelm succeeded his father, Friedrich August I, Duke of Oldenburg as the Duke of Oldenburg in 1785. Wilhelm's mother was Princess Ulrike Friederike Wilhelmine of Hesse-Kassel.
| William I | |||||
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| Duke of Oldenburg | |||||
| Reign | 6 July 1785 –2 July 1823 | ||||
| Predecessor | Frederick Augustus I | ||||
| Successor | Peter I | ||||
| Born | 3 January 1754 Eutin, Prince-bishopric of Lübeck | ||||
| Died | 2 July 1823 (aged 69) Schloss Plön, Plön, Duchy of Holstein | ||||
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| House | House of Holstein-Gottorp | ||||
| Father | Frederick August I, Duke of Oldenburg | ||||
| Mother | Princess Ulrike Friederike Wilhelmine of Hesse-Kassel | ||||