question: Who is the maternal grandfather of Sophie Of Württemberg, Duchess Of Saxe-Weimar?
context: [["Sophie of W\u00fcrttemberg", ["Sophie of W\u00fcrttemberg", "( Sophia Frederika Mathilde; 17 June 1818 \u2013 3 June 1877) was Queen of the Netherlands as the first wife of King William III."]], ["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."]], ["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."]], ["Princess Augusta of W\u00fcrttemberg", ["Princess Augusta of W\u00fcrttemberg( 4 October 1826 in Stuttgart \u2013 3 December 1898, ibid.) was a daughter of King William I of W\u00fcrttemberg and his wife, Pauline of W\u00fcrttemberg."]], ["Anna Maria of Brandenburg-Ansbach", ["Anna Maria of Brandenburg-Ansbach (28 December 1526 \u2013 20 May 1589) was a German princess of Brandenburg-Ansbach.", "Anna Maria was born at J\u00e4gerndorf, the eldest daughter of George, Margrave of Brandenburg-Ansbach and his second wife Hedwig of M\u00fcnsterberg-Oels, daughter of Charles I of M\u00fcnsterberg-Oels.", "Anna Maria was brought up as a Lutheran and on 24 February 1544 became the wife of Christoph, Duke of W\u00fcrttemberg.", "She later acted as guardian to her son Ludwig III, Duke of W\u00fcrttemberg early in his reign.", "After the death of her husband Christoph she lived more than 20 years in the N\u00fcrtingen castle, she died in N\u00fcrtingen.", "After losing both her husband and her eldest son in 1568, Anna Maria fell madly in love with the young Landgrave George I of Hesse-Darmstadt (1547\u20131596).", "Soon afterwards she became mentally confused and was locked up.", "George I later married her daughter Eleonore.", "She died in 1589 and was buried in the St. George's Collegiate Church in T\u00fcbingen."]], ["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."]], ["Louis Frederick, Duke of W\u00fcrttemberg-Montb\u00e9liard", ["Louis Frederick of W\u00fcrttemberg- Montb\u00e9liard( 29 January 1586 in Montb\u00e9liard \u2013 26 January 1631 in Montb\u00e9liard) was the founder of a cadet line of the House of W\u00fcrttemberg known as the Dukes of W\u00fcrttemberg- Montb\u00e9liard.", "Louis Frederick of W\u00fcrttemberg was born at Montb\u00e9liard Castle as the fifth child and second son of Duke Frederick I of W\u00fcrttemberg, and princess Sibylla of Anhalt."]], ["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."]], ["Sophie of W\u00fcrttemberg, Duchess of Saxe-Weimar", ["Sophie of W\u00fcrttemberg (20 November 1563 - 21 July 1590), was a German noblewoman member of the House of W\u00fcrttemberg and by marriage Duchess of Saxe-Weimar.", "Born in Stuttgart, she was the youngest of twelve children born from the marriage of Christoph, Duke of W\u00fcrttemberg and Anna Maria of Brandenburg-Ansbach.", "From her eleven older siblings, nine survive adulthood: Eberhard, Hereditary Prince of W\u00fcrttemberg, Hedwig (by marriage Landgravine of Hesse-Marburg),", "Elisabeth (by her two marriages Countess of Henneberg-Schleusingen and Countess Palatine of Veldenz-Lauterecken), Sabine (by marriage Landgravine of Hesse-Kassel), Emilie (by marriage Countess Palatine of Simmern-Sponheim), Eleonore (by her two marriages Princess of Anhalt and Landgravine of Hesse-Darmstadt), Louis III, Duke of W\u00fcrttemberg, Dorothea Maria (by marriage Countess Palatine of Sulzbach) and Anna (by her two marriages Duchess of O\u0142awa and Legnica)."]], ["Duke Alexander of W\u00fcrttemberg (1804\u20131885)", ["Duke Alexander Paul Ludwig Konstantin of W\u00fcrttemberg( 9 September 1804, Saint Petersburg \u2013 4 July 1885 T\u00fcffer) was the father of Francis, Duke of Teck and the grandfather of Mary of Teck, wife of George V of the United Kingdom.", "His father was Duke Louis of W\u00fcrttemberg, brother of King Frederick I of W\u00fcrttemberg and Empress Maria Feodorovna of Russia.", "His mother was Princess Henriette of Nassau- Weilburg, a great- granddaughter of George II of Great Britain through his eldest daughter Anne, Princess of Orange."]]]
supporting_facts: [["Sophie of W\u00fcrttemberg, Duchess of Saxe-Weimar", 1], ["Anna Maria of Brandenburg-Ansbach", 1]]
evidences: [["Sophie of W\u00fcrttemberg", "mother", "Anna Maria of Brandenburg-Ansbach"], ["Anna Maria of Brandenburg-Ansbach", "father", "George"]]
answer: George