question: Who is the maternal grandmother of Anna Of Württemberg?
context: [["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."]], ["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."]], ["Anna of W\u00fcrttemberg", ["Anna of W\u00fcrttemberg (12 June 1561 in Stuttgart \u2013 7 July 1616 in Chojn\u00f3w), was a German princess, member of the House of W\u00fcrttemberg, and by her two marriages Duchess of O\u0142awa-Wo\u0142\u00f3w and Legnica.", "She was the daughter of Christoph, Duke of W\u00fcrttemberg, by his wife Anna Maria of Brandenburg-Ansbach, daughter of George, Margrave of Brandenburg-Ansbach."]], ["Tjuyu", ["Tjuyu( sometimes transliterated as Thuya or Thuyu) was an Egyptian noblewoman and the mother of queen Tiye, and the wife of Yuya.", "She is the grandmother of Akhenaten, and great grandmother of Tutankhamun."]], ["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."]], ["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."]], ["Hubba bint Hulail", ["Hubba bint Hulail was the grandmother of Hashim ibn' Abd Manaf, thus the great- great- great- grandmother of the Islamic\" Nab\u012b\"( Prophet) Muhammad ibn Abdullah."]], ["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."]], ["Hannah Arnold", ["Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children."]], ["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."]]]
supporting_facts: [["Anna of W\u00fcrttemberg", 1], ["Anna Maria of Brandenburg-Ansbach", 1]]
evidences: [["Anna of W\u00fcrttemberg", "mother", "Anna Maria of Brandenburg-Ansbach"], ["Anna Maria of Brandenburg-Ansbach", "mother", "Hedwig of M\u00fcnsterberg-Oels"]]
answer: Hedwig of Münsterberg-Oels