Ко се венчао Princess Eugenia Maximilianovna of Leuchtenberg?

Princess Eugenia Maximilianovna of Leuchtenberg (Russian: Евгения Максимилиановна Лейхтенбергская) (1 April 1845 – 4 May 1925) was the daughter of Maximilian de Beauharnais, 3rd Duke of Leuchtenberg and Grand Duchess Maria Nikolaevna of Russia. Although she was a member of the French House of Beauharnais, she was born and raised in her mother's native country, Russia.

In 1868, she married her distant cousin, Duke Alexander of Oldenburg. The couple had an only child, Duke Peter Alexandrovich of Oldenburg. Princess Eugenia and her husband were particularly noted for their extensive philanthropy throughout Russia; so much so in fact that by 1914, a newspaper source could claim that "there [were] probably not two who are so universally beloved as the Duke and Duchess of Oldenburg".

Duke Alexander Frederick Constantin of Oldenburg (German: Herzog Alexander Friedrich Konstantin von Oldenburg; Russian: Алекса́ндр Петро́вич Ольденбу́ргский, Alexander Petrovich Oldenburgsky; 2 June [O.S. 21 May] 1844 – 6 September 1932) was the second son of Duke Peter of Oldenburg and Princess Therese of Nassau-Weilburg. Though he had a German title and ancestry, Alexander and his siblings were born and raised in St. Petersburg as the grandchildren of Grand Duchess Catherine Pavlovna of Russia.

Alexander served as Adjutant general to Alexander III of Russia, and also as commanding general of the Imperial Guard. Alexander was the Russian candidate submitted to succeed Alexander, Prince of Bulgaria, though this nomination failed to gain the support of the other great European powers. At the outbreak of World War I, Nicholas II appointed Alexander, a medical doctor, as supreme chief of the medical service of the military and naval forces.

Alexander and his wife Princess Eugenia Maximilianovna of Leuchtenberg were noted for their philanthropy, establishing schools, hospitals, orphanages, and other charitable organizations in Russia. During World War I, the duke famously invited wounded British and French soldiers to stay for free in a sanatorium he founded in the Crimea. When the Russian revolution broke out, Alexander was reported to have been one of the Imperial family killed by the newly emerged Bolshevik government, though this turned out to be only a rumor as the duke was able to escape and hide away in Finland and eventually to France, where he died at Biarritz on 6 September 1932.