Duchess Therese Petrovna of Oldenburg Duchess of Oldenburg (1852-1883) (1852–1883) Parents Princess Therese of Nassau Duke Peter of Oldenburg Children Alexander Georgievich, 7th Duke of Leuchtenberg Siblings Duke Constantine Petrovich of Oldenburg Ekaterina Petrovna of Oldenburg Duchess Alexandra of Oldenburg Duke Alexander Petrovich of Oldenburg Georg Friedrich Alexander von Holstein-Gottorp, Herzog von Oldenburg Duke Nikolaus of Oldenburg Marie Friederike Cäcilie of Oldenburg Partners George Maximilianovich, 6th Duke of Leuchtenberg
