Duchess Therese Petrovna of Oldenburg was the youngest daughter of Duke Peter Georgievich of Oldenburg and his wife Princess Therese of Nassau-Weilburg.
Background
On 12 May 1879, Therese married George Maximilianovich, 6th Duke of Leuchtenberg (1852–1912), youngest son of Maximilian de Beauharnais, 3rd Duke of Leuchtenberg and his wife Grand Duchess Maria Nikolaevna of Russia. Therese"s grandfather had married Grand Duchess Catherine Pavlovna, daughter of Paul I of Russia, and their descendants had been raised in Russia ever since and become completely "Russianized", much like George"s own family.
Career
Issue In July 1881, the British Reserve Squadron held entertainments on board the HMS Hercules, which was stationed in Cronstadt. Death Duchess Therese died on 19 April 1883 in Saint St. Petersburg. Six years after her death, George remarried to Princess Anastasia of Montenegro.
Titles and styles 30 March 1852 - 12 May 1879 Her Imperial Highness Duchess Therese Petrovna of Oldenburg (Princess Therese Petrovna Oldenburgskaya) 12 May 1879 - 19 April 1883: Her Imperial Highness Princess Therese Petrovna of Leuchtenberg.
Membership
Later that year, while lodging with Prince Felix Yusupov, Alexander was arrested by Bolshevik authorities, along with four or five prominent members of the monarchical party.