Cine s-a căsătorit cu Duke Peter of Oldenburg?

Duke Constantine Frederick Peter of Oldenburg (German: Konstantin Friedrich Peter; Russian: Пётр Гео́ргиевич Ольденбу́ргский, romanized: Pëtr Geórgievič Ol'denbúrgskij; 26 August [O.S. 14 August] 1812 – 14 May [O.S. 2 May] 1881) was a Duke of the House of Oldenburg. He was the grandfather of Duke Peter of Oldenburg as well as grandfather of Grand Duke Nicholas Nikolaevich, General of the Imperial Russian Army during World War I. His great-great-grandson, Nicholas Romanov, was the President of the Romanov Family Association until his death in 2014.

Peter of Oldenburg was a scholar and philanthropist. He was also noted composer of music. In 1857 he composed the music for Marius Petipa's ballet La Rose, la Violette et le Papillon. The Pas d'Esclave from the ballet Le Corsaire, which is taken from his score for this work, is still heard in theatres all over the world.

Prințesa Therese Wilhelmine Friederike Isabelle Charlotte de Nassau-Weilburg, (n. 17 aprilie 1815 - 8 decembrie 1871) a fost membră a Casei de Nassau-Weilburg și Prințesă de Nassau-Weilburg prin naștere. Prin căsătoria cu Ducele Peter de Oldenburg a devenit membră a Casei de Holstein-Gottorp și Ducesă de Oldenburg.