question: What is the date of birth of Princess Maria Felicita Of Savoy's mother?
context: [["Polyxena of Hesse-Rotenburg", ["Princess Polyxena of Hesse-Rheinfels-Rotenburg (Polyxena Christina Johanna; 21 September 1706 \u2013 13 January 1735) was the second wife of Charles Emmanuel, Prince of Piedmont whom she married in 1724.", "The mother of the future Victor Amadeus III, she was queen consort of Sardinia from 1730 until her death in 1735."]], ["Princess Maria Anna Victoria of Savoy", ["Princess Maria Anna Victoria of Savoy (11 September 1683 \u2013 11 October 1763) was the daughter of Prince Louis Thomas of Savoy, Count of Soissons, and Uranie de La Cropte de Beauvais."]], ["Princess Maria Beatrice of Savoy", ["Princess Maria Beatrice of Savoy( born 2 February 1943) is the youngest daughter of Italy's last King, Umberto II, and his wife, Queen Marie Jos\u00e9."]], ["Princess Maria Felicita of Savoy", ["Princess Maria Felicita of Savoy (19 March 1730 \u2013 13 May 1801) was a princess of the House of Savoy, the third daughter of Charles Emmanuel III of Sardinia and his second wife, Polyxena of Hesse-Rotenburg."]], ["Princess Luisa Cristina of Savoy", ["Princess Luisa Cristina of Savoy (27 July 1629 \u2013 12 May 1692) was a Princess of Savoy by birth and the eldest daughter of Victor Amadeus I, Duke of Savoy.", "She married her uncle Prince Maurice of Savoy but had no children.", "She was the owner of the future \"Villa della Regina\".", "She was a first cousin of Louis XIV of France and Charles II of England."]], ["Thomas Emmanuel, Prince of Savoy-Carignan", ["Prince Thomas Emmanuel of Savoy,( 8 December 1687 \u2013 28 December 1729), was born a Prince of Savoy and was later Count of Soissons from 1702 till his death.", "He was the son of Prince Louis Thomas of Savoy( 1657 \u2013 1702) and Uranie de La Cropte.", "The famous general Prince Eugene of Savoy was his uncle.", "He married on 24 October 1713 Princess Maria Theresia of Liechtenstein( 1694 \u2013 1772), Duchess of Troppau and had one son.", "He became a Knight in the Austrian Order of the Golden Fleece in 1712.", "He died in Vienna."]], ["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."]], ["Yolande Louise of Savoy", ["Yolande Louise of Savoy( 1487\u20131499), was a Duchess Consort of Savoy; married to Philibert II, Duke of Savoy."]], ["Princess Maria Isabella of Savoy-Genoa", ["Princess Maria Isabella of Savoy- Genoa( born 23 June 1943) is the last surviving male- line descendant of the Dukes of Genoa, a cadet branch of the House of Savoy which ruled Italy from 1861 to 1946."]], ["Theodred II (Bishop of Elmham)", ["Theodred II was a medieval Bishop of Elmham.", "The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997."]]]
supporting_facts: [["Princess Maria Felicita of Savoy", 0], ["Polyxena of Hesse-Rotenburg", 0]]
evidences: [["Princess Maria Felicita of Savoy", "mother", "Polyxena of Hesse-Rotenburg"], ["Polyxena of Hesse-Rotenburg", "date of birth", "21 September 1706"]]
answer: 21 September 1706