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|Archduchess Maria Theresa of Austria-Este|
|Countess of Chambord|
14 July 1817|
Modena, Duchy of Modena
25 March 1886 (aged 68)|
|Burial||Kostanjevica Monastery, Nova Gorica, Slovenia|
Henry, Count of Chambord (m. 1846)
|Father||Francis IV, Duke of Modena|
|Mother||Maria Beatrice of Savoy|
Archduchess Maria Theresa of Austria-Este (German: Maria Theresia Beatrix Gaëtane, Erzherzogin von Österreich-Este, Prinzessin von Modena) (14 July 1817, Modena, Duchy of Modena and Reggio – 25 March 1886, Gorizia, Austria–Hungary) was a member of the House of Austria-Este and Archduchess and Princess of Austria, Princess of Hungary, Bohemia, and Modena by birth. Through her marriage to Henri, comte de Chambord, Maria Theresa was also a member of the House of Bourbon. Henri was disputedly King of France and Navarre from 2 to 9 August 1830 and afterwards the Legitimist Pretender to the throne of France from 1844 to 1883. Maria Theresa was the eldest child of Francis IV, Duke of Modena and his wife Maria Beatrice of Savoy.
Maria Theresa married Henri, comte de Chambord, the posthumous son of Charles Ferdinand, Duke of Berry, younger son of Charles X of France, by his wife, Princess Caroline Ferdinande of Bourbon-Two Sicilies, daughter of Francis I of the Two Sicilies, by proxy on 7 November 1846 in Modena and in person on 16 November 1846 in Bruck an der Mur. Maria Theresa and Henri produced no children.
Maria Theresa had been chosen as Henri's wife by his paternal aunt Marie-Thérèse-Charlotte of France. Marie-Thérèse sought to ally the exiled French Royal Family with the House of Austria-Este for several reasons: it was Roman Catholic and the only royal family not to have recognized the July Monarchy of Louis-Philippe of France. Henri had actually preferred Maria Theresa's youngest sister, Maria Beatrix.
After Henri's death on 24 August 1883, Maria Theresa and a minority of Henri's supporters held that Juan, Count of Montizón, as senior male descendant of Louis XIV, was his successor. Juan's wife was Maria Theresa's sister, Maria Beatrix.
Maria Theresa was instrumental in building a crypt for the French Royal Family at the Church of the Annunciation of Our Lady on Castagnevizza in Görz (now in Nova Gorica, Slovenia). It was her wish that the last of the Bourbons be gathered in one place together within the monastery at Castagnevizza. Three years after the death of her husband Henri, Maria Theresa died on 25 March 1886 in Görz, then Austria and was interred with her husband in the crypt of the church of Franciscan Monastery of Castagnevizza in Görz, then Austria, now Kostanjevica in the Slovenian town of Nova Gorica. 
|Ancestors of Archduchess Maria Theresa of Austria-Este (1817–1886)|
|Wikimedia Commons has media related to Archduchess Maria Theresa of Austria-Este.|
Archduchess Maria Theresa of Austria-Este (1817–1886)
Cadet branch of the House of Habsburg-LorraineBorn: 14 July 1817 Died: 25 March 1886
|Titles in pretence|
Marie-Thérèse-Charlotte of France
|— TITULAR —
Queen consort of France and Navarre
Legitimist pretender to the French throne
7 November 1846 – 24 August 1883
Reason for succession failure:
Maria Beatrix of Austria-Este
Marie Isabelle of Orléans