question: When was Princess Maria Anna Of Saxony (1799–1832)'s husband born?
context: [["Princess Maria Josepha of Saxony (1867\u20131944)", ["Princess Maria Josepha of Saxony( 31 May 1867 \u2013 28 May 1944) was the mother of Emperor Charles I of Austria and the fifth child of George of Saxony and Infanta Maria Anna of Portugal."]], ["Maria Anna of Bavaria (1805\u20131877)", ["Princess Maria Anna of Bavaria (27 January 1805 \u2013 13 September 1877) was Queen Consort of Saxony from 1836 to 1854."]], ["Princess Elisabeth Anna of Prussia", ["Princess Elisabeth Anna of Prussia (8 February 1857 \u2013 28 August 1895) was a German princess.", "She was the second child of Prince Frederick Charles of Prussia and Princess Maria Anna of Anhalt-Dessau.", "The Elisabeth-Anna-Palais was named in her honor after her early death in 1895."]], ["Princess Maria Anna of Saxony (1799\u20131832)", ["Marie Anna of Saxony, Grand Duchess of Tuscany (15 November 1799 \u2013 24 March 1832), (full name:", "Maria Anna Carolina Josepha Vincentia", "Xaveria Nepomucena Franziska de Paula Franziska de Chantal Johanna", "Antonia Elisabeth Cunigunde Gertrud Leopoldina), was a princess of Saxony.", "She became Grand Duchess of Tuscany by her marriage to Leopold II, Grand Duke of Tuscany."]], ["Leopold II, Grand Duke of Tuscany", ["Leopold II (English: \"Leopold John Joseph Francis Ferdinand Charles\"; 3 October 1797 \u2013 29 January 1870) was Grand Duke of Tuscany (1824\u20131859).", "He married twice; first to Maria Anna of Saxony, and after her death in 1832, to Maria Antonia of the Two-Sicilies.", "By the latter, he begat his eventual successor, Ferdinand.", "Leopold was recognised contemporarily as a liberal monarch, authorising the Tuscan Constitution of 1848, and allowing a degree of free press.", "The Grand Duke was deposed briefly by a provisional government in 1849, only to be restored the same year with the assistance of Austrian troops, who occupied the state until 1855.", "Leopold attempted a policy of neutrality with regard to the Second Italian War of Independence, but was expelled by a bloodless coup on 27 April 1859, just before the beginning of the war.", "The Grand Ducal family left for Bologna, in Papal territory.", "Tuscany was occupied by soldiers of Victor Emmanuel II of Sardinia for the duration of the conflict.", "The preliminary peace of Villafranca, agreed to between Napoleon III of France and Franz Joseph of Austria on 11 July, provided for the return of the Lorraines to Florence, but Leopold himself was considered too unpopular to be accepted, so on 21 July 1859 he abdicated the throne in favour of his son, Ferdinand.", "Ferdinand was not, however, any more acceptable to the revolutionaries in control of Florence, and his accession was not proclaimed.", "Instead, the provisional government proclaimed the deposition of the House of Habsburg (16 August)."]], ["Princess Sophie of Bavaria", ["Princess Sophie of Bavaria", "( Sophie Friederike Dorothea Wilhelmine; 27 January 1805 \u2013 28 May 1872) was born to King Maximilian I Joseph of Bavaria and his second wife Caroline of Baden.", "She was the identical twin sister of Princess Maria Anna of Bavaria, Queen of Saxony as wife of Frederick Augustus II of Saxony.", "Her eldest son Franz Joseph reigned as Emperor of Austria, and King of Hungary; her second son Maximilian reigned as Emperor of Mexico."]], ["Princess Mathilde of Saxony (born 1863)", ["Princess Mathilde of Saxony, Duchess of Saxony (19 March 1863 \u2013 27 March 1933) was the third child and third-eldest daughter of George of Saxony and his wife, Maria Anna of Portugal.", "She was an elder sister of the Kingdom of Saxony's last king, Frederick Augustus III of Saxony."]], ["Frederick Augustus II, Grand Duke of Oldenburg", ["Frederick Augustus II( 16 November 1852 in Oldenburg \u2013 24 February 1931 in Rastede) was the last ruling Grand Duke of Oldenburg.", "He married Princess Elisabeth Anna of Prussia, daughter of Princess Maria Anna of Anhalt- Dessau and Prince Frederick Charles of Prussia.", "After her death, he married Elisabeth Alexandrine of Mecklenburg- Schwerin."]], ["Princess Maria Pia of Bourbon-Parma", ["Princess Maria Pia of Bourbon- Parma( n\u00e9e Princess Maria Pia of Savoy; born 24 September 1934) is the eldest daughter of Umberto II of Italy and Marie- Jos\u00e9 of Belgium.", "She is the older sister of Princess Maria Gabriella of Savoy, Vittorio Emanuele, Prince of Naples, and Princess Maria Beatrice of Savoy."]], ["Prince Johann Georg of Saxony", ["Prince Johann Georg Pius Karl Leopold Maria Januarius Anacletus of Saxony, Duke of Saxony (10 July 1869 \u2013 24 November 1938) was the sixth child and second-eldest son of George of Saxony and his wife Maria Anna of Portugal and a younger brother of the Kingdom of Saxony's last king, Frederick Augustus III of Saxony.", "Johann Georg was a well-known arts expert and an avid art collector."]]]
supporting_facts: [["Princess Maria Anna of Saxony (1799\u20131832)", 4], ["Leopold II, Grand Duke of Tuscany", 0]]
evidences: [["Marie Anna of Saxony", "spouse", "Leopold II, Grand Duke of Tuscany"], ["Leopold II, Grand Duke of Tuscany", "date of birth", "3 October 1797"]]
answer: 3 October 1797