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Wilhelm, Duke of Oldenburg

William I
Duke of Oldenburg
Duke of Oldenburg
Predecessor Frederick Augustus I
Successor Peter I
Born (1754-01-03)3 January 1754
Eutin
Died 2 July 1823(1823-07-02) (aged 69)
Schloss Plön, Plön
Full name
German: Peter Friedrich Wilhelm
House House of Holstein-Gottorp
Father Frederick August I, Duke of Oldenburg
Mother Princess Ulrike Friederike Wilhelmine of Hesse-Kassel
Full name
German: Peter Friedrich Wilhelm

Peter Friedrich Wilhelm, Duke of Oldenburg, (3 January 1754, Eutin Castle, Eutin – 2 July 1823, Schloss Plön, Plön.) Wilhelm succeeded his father,Frederick Augustus I, Duke of Oldenburg as the Duke of Oldenburg in 1785. Wilhelm's mother was Princess Ulrike Friederike Wilhelmine of Hesse-Kassel.

Due to mental illness, Wilhelm was duke in name only, with his cousin Peter, Prince-Bishop of Lübeck, acting as regent throughout his entire reign.

The title became a Grand Duke in 1815, but Wilhelm never used the elevated style. It was not used until 1829 by the son of Wilhelm's cousin and successor, Peter I.



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