From Wikipedia:
Therese was the second child and daughter of William, Duke of Nassau and his first wife Princess Louise of Saxe-Hildburghausen.
She was a member of the House of Nassau-Weilburg and a Princess of Nassau-Weilburg by birth. Up until the time of her marriage, she was given the title "Her Ducal Serene Highness Princess Therese of Nassau-Weilburg."
On 23 April 1837, Therese married Duke Peter of Oldenburg, who was the second and younger son of Duke George of Oldenburg and his wife Grand Duchess Catherine Pavlovna of Russia (a daughter of Tsar Paul I and sister of Tsar Alexander I).
Therese and Peter had eight children:
1) Grand Duchess Alexandra Petrovna of Oldenburg (2 June 1838, St. Petersburg – 13 April 1900 Kiev, Ukraine); m. Grand Duke Nicholas Nikolaevich of Russia (1831–1891).
2) Nicholas of Oldenburg (9 May 1840, St. Petersburg – 20 January 1886, Geneva, Switzerland); m. Maria Bulazel created Countess of Osternburg.
3) Cecile of Oldenburg (27 February 1842 St. Petersburg – 11 January 1843, St. Petersburg)
4) Grand Duke Alexander of Oldenburg (2 June 1844, St Petersburg, – 6 September 1932, Biarritz, France). Heir of the Russian Oldenburgs. He married Princess Eugenia Maximilianovna of Leuchtenberg. Their only son, Duke Peter Alexandrovich of Oldenburg, married Grand Duchess Olga Alexandrovna of Russia.
5) Catherine of Oldenburg (21 September 1846, St. Petersburg – 23 June 1866, St. Petersburg)
6) George of Oldenburg (17 April 1848, St. Petersburg – 17 March 1871, St. Petersburg)
7) Duke Constantine Petrovich of Oldenburg (27 April 1850, St. Petersburg - 18 March 1906 in Nice, France); m. [1882] Princess Agrafena Djaparidze, created first Countess of Zarnekau. Six children: The Counts and Countessas von Zarnekau)
8) Therese of Oldenburg (30 March 1852, St. Petersburg – 18 April 1883 St. Petersburg); m. George Maximilianovich, 6th Duke of Leuchtenberg (1852–1912)
Through her marriage to Duke Peter of Oldenburg, Therese became a member of the House of Holstein-Gottorp and a Duchess of Oldenburg. After April 1837, she was addressed as: Her Imperial Highness Duchess Peter Georgievich of Oldenburg.
Therese's children and grandchildren became very influential in the Russian court during the late 19th Century.
Princess Therese died 8 December 1871 at Prague, Kingdom of Bohemia, Austria–Hungary.
"Princess Therese of Nassau-Weilburg" Wikipedia at this link: [2]
"Therese, Prinzessin von Nassau-Weilburg" The Peerage.com at this link: [3]
SEE ALSO
"Adolphe, Duke of Luxemboug" Wikipedia [biography of brother] at this link: [4]
"Auguste, Prinzessin von Nassau-Weilberg" The Peerage.com at this link: [5]
C. Arnold McNaughton, The Book of Kings: A Royal Genealogy, in 3 volumes (London, U.K.: Garnstone Press, 1973), volume 1, page 104.
"Genealogy of the Ducal House of Nassau" House of Nassau Page at this link: [6]
"Georg Wilhelm August Heinrich Belgicus Herzog von Nassau-Weilburg" The Peerage.com [biography of father] at this link: [7]
"HSH Princess Therese and Her Descendants" [biography of sister] Genealogy of the Ducal Family of Nassau website: [8]
Marcellus Donald R. von Redlich, Pedigrees of Some of the Emperor Charlemagne's Descendants, volume I (1941; reprint, Baltimore, Maryland, U.S.A.: Genealogical Publishing Company, 2002), page 77
"Princess Therese of Nassau-Weilburg" Wikipedia [biography of sister] at this link: [9]
"Therese, Prinzessin von Nassau-Weilburg" The Peerage.com [biography of sister] at this link: [10]
Weir, Alison. Britain's Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 313.
"Wilhelm I. Georg August Heinrich Belgicus von Nassau-Weilburg" Find A Grave Memorial (burial of father) at this link: [11]
"William, Duke of Nassau" Wikipedia [biography of father] at this link: [12]
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Therese is 29 degrees from Maximilien de Robespierre, 5 degrees from Marie-Antoinette d'Autriche, 13 degrees from Victor François de Broglie, 12 degrees from Thérésia Tallien, 24 degrees from Marie Corday, 23 degrees from Georges Danton, 8 degrees from Axel von Fersen, 20 degrees from Olympe de Gouges, 14 degrees from François Christophe Kellermann, 16 degrees from Claude Joseph Rouget de Lisle, 12 degrees from Germaine de Staël and 20 degrees from Pam Smith on our single family tree. Login to find your connection.
V > von Nassau-Weilburg > Therese Wilhelmine Friederike Isabelle Charlotte von Nassau-Weilburg