question: When is Philipp Albrecht, Duke Of Württemberg's mother's birthday?
context: [["Archduchess Rosa of Austria", ["Archduchess \"Rosa\" Maria Antonie Roberta Josepha Anna Walburga Carmela Ignazia Rita de Cascia of Austria, full German name: \"", "Rosa Maria Antonie Roberta Josepha Anna", "Walburga Carmela Ignazia Rita de Cascia, Erzherzogin von \u00d6sterreich\" (22 September 1906, , Salzburg, Salzburg, Austria\u2013Hungary \u2013 17 September 1983, Friedrichshafen, Baden-W\u00fcrttemberg, Germany) was a member of the Tuscan branch of the House of Habsburg-Lorraine and an Archduchess of Austria and Princess of Bohemia, Hungary, and Tuscany by birth.", "Through her marriage to Philipp Albrecht, Duke of W\u00fcrttemberg, Rosa was also a member of the House of W\u00fcrttemberg and Duchess consort of W\u00fcrttemberg."]], ["Prince Frederick of W\u00fcrttemberg", ["Prince\" Frederick\" Charles Augustus of W\u00fcrttemberg( 21 February 1808 \u2013 9 May 1870) was a General in the Army of W\u00fcrttemberg and the father of William II of W\u00fcrttemberg.", "Frederick was a member of the Royal Family of W\u00fcrttemberg and a Prince of W\u00fcrttemberg."]], ["Carl, Duke of W\u00fcrttemberg", ["Carl Maria", "Peter Ferdinand Philipp Albrecht Joseph Michael Pius Konrad Robert Ulrich Herzog von W\u00fcrttemberg( born 1 August 1936) is the current head of the House of W\u00fcrttemberg."]], ["Frederick II Eugene, Duke of W\u00fcrttemberg", ["Friedrich Eugen, Duke of W\u00fcrttemberg( 21 January 1732 \u2013 23 December 1797) was the fourth son of Karl Alexander, Duke of W\u00fcrttemberg, and Princess Maria Augusta of Thurn and Taxis( 11 August 1706 \u2013 1 February 1756).", "He was born in Stuttgart.", "From 1795 until 1797 he was Duke of W\u00fcrttemberg."]], ["Philipp Albrecht, Duke of W\u00fcrttemberg", ["Philipp Albrecht, Duke of W\u00fcrttemberg", "(\"George Philipp Albrecht", "Carl Maria Joseph Ludwig Hubertus", "Stanislaus Leopold Herzog von W\u00fcrttemberg\", 14 November 1893 \u2013 17 April 1975) was the son of Albrecht, Duke of W\u00fcrttemberg, and Archduchess Margarete Sophie of Austria.", "He was born in Stuttgart, and became head of the formerly reigning royal House of W\u00fcrttemberg on the death of his father in 1939.", "He died in Ravensburg, aged 81."]], ["Albrecht, Duke of W\u00fcrttemberg", ["Albrecht, Duke of W\u00fcrttemberg(\" Albrecht Maria Alexander Philipp Joseph von W\u00fcrttemberg\", 23 December 1865 \u2013 31 October 1939) was the last W\u00fcrttemberger crown prince, a German military commander of the First World War, and the head of the House of W\u00fcrttemberg from 1921 to his death."]], ["Frederick Augustus, Duke of W\u00fcrttemberg-Neuenstadt", ["Frederick Augustus of W\u00fcrttemberg-Neuenstadt (Neuenstadt am Kocher, 12 March 1654 \u2013 6 August 1716 in Gochsheim) was Duke of W\u00fcrttemberg and second Duke of W\u00fcrttemberg-Neuenstadt."]], ["Archduchess Margarete Sophie of Austria", ["Archduchess Margarete Sophie of Austria", "(Margarete Sophie Marie Annunciata Theresia Caroline Luise Josephe Johanna; 13 May 1870 \u2013 24 August 1902) was a member of the House of Habsburg and an Archduchess of Austria by birth.", "She was married to Duke Albrecht of W\u00fcrttemberg,"]], ["Princess Catherine of W\u00fcrttemberg", ["Princess Catherine Frederica Charlotte of W\u00fcrttemberg (Stuttgart, 24 August 1821 \u2013 Stuttgart, 6 December 1898) was a daughter of William I of W\u00fcrttemberg and Pauline Therese of W\u00fcrttemberg.", "She was the mother of William II of W\u00fcrttemberg."]], ["Christoph, Duke of W\u00fcrttemberg", ["Christoph of W\u00fcrttemberg, Duke of W\u00fcrttemberg (12 May 1515 \u2013 28 December 1568) ruled as Duke of W\u00fcrttemberg from 1550 until his death in 1568."]]]
supporting_facts: [["Philipp Albrecht, Duke of W\u00fcrttemberg", 3], ["Archduchess Margarete Sophie of Austria", 1]]
evidences: [["Philipp Albrecht, Duke of W\u00fcrttemberg", "mother", "Archduchess Margarete Sophie of Austria"], ["Archduchess Margarete Sophie of Austria", "date of birth", "13 May 1870"]]
answer: 13 May 1870