question: When did Albrecht Of Saxe-Weissenfels's mother die?
context: [["Georg Albrecht of Saxe-Weissenfels, Count of Barby", ["Georg Albrecht of Saxe- Weissenfels, Count of Barby( b. Dessau, 19 April 1695 \u2013 d. Barby, 12 June 1739), was a German prince of the House of Wettin and the last count of Barby.", "He was the sixth( but second surviving) son of Heinrich of Saxe- Weissenfels, Count of Barby, and Elisabeth Albertine of Anhalt- Dessau."]], ["Albrecht of Saxe-Weissenfels", ["Albrecht of Saxe-Weissenfels (14 April 1659 in Halle \u2013 9 May 1692 in Leipzig), was a German prince of the House of Wettin.", "He was the fifth and youngest son of August, Duke of Saxe-Weissenfels, and his first wife, Anna Maria of Mecklenburg-Schwerin."]], ["Johann Adolf II, Duke of Saxe-Weissenfels", ["Johann Adolf II, Duke of Saxe- Weissenfels", "( Weissenfels, 4 September 1685 \u2013 Leipzig, 16 May 1746), was the last duke of Saxe- Weissenfels- Querfurt and a member of the House of Wettin.", "He was also a commander in the Saxon army.", "Johann Adolf was the youngest of the eleven children of Johann Adolf I, Duke of Saxe- Weissenfels, and Johanna Magdalena of Saxe- Altenburg.", "His mother died five months after his birth, on 22 January 1686."]], ["Christian, Duke of Saxe-Weissenfels", ["Christian, Duke of Saxe- Weissenfels( 23 February 1682 in Weissenfels \u2013 28 June 1736 in Sangerhausen), was a duke of Saxe- Weissenfels- Querfurt and member of the House of Wettin.", "He was the sixth( but second surviving) son of Johann Adolf I, Duke of Saxe- Weissenfels, and Johanna Magdalena of Saxe- Altenburg."]], ["Magdalena Sibylla of Saxe-Weissenfels (1673\u20131726)", ["Magdalene Sibylle of Saxe- Weissenfels", "( 3 September 1673 \u2013 28 November 1726), was a German noblewoman member of the House of Wettin( Albertine line) and by marriage Duchess of Saxe- Eisenach.", "Born in Halle, she was the oldest daughter and first child of Duke Johann Adolf I of Saxe- Weissenfels and his wife Johanna Magdalena, the daughter of Duke Frederick William II of Saxe- Altenburg.", "She was named after her paternal great- grandmother, Duchess Magdalene Sibylle of Prussia."]], ["Anna Maria of Mecklenburg-Schwerin", ["Anna Maria of Mecklenburg-Schwerin (1 July 1627, in Schwerin \u2013 11 December 1669, in Halle) was a German noblewoman, a member of the House of Mecklenburg and by marriage Duchess of Saxe-Weissenfels.", "She was the fourth child and second daughter of Adolf Frederick I, Duke of Mecklenburg-Schwerin by his first wife Anna Maria, daughter of Enno III, Count of Ostfriesland.", "In older historiography she appears with a third name, \"Dorothea\", but modern historians have discarded it."]], ["Johann Adolf I, Duke of Saxe-Weissenfels", ["Johann Adolf I, Duke of Saxe- Weissenfels( 2 November 1649, in Halle \u2013 24 May 1697, in Weissenfels), was a duke of Saxe- Weissenfels- Querfurt and member of the House of Wettin.", "He was the first son of Augustus, Duke of Saxe- Weissenfels, and his first wife, Anna Maria of Mecklenburg- Schwerin."]], ["Johanna Magdalene of Saxe-Weissenfels", ["Johanna Magdalene of Saxe- Weissenfels( 17 March 1708 \u2013 25 January 1760), was a Duchess consort of Courland.", "She married the Duke of Courland, Ferdinand Kettler, on 20 September 1730.", "She was the daughter of Johann Georg, Duke of Saxe- Weissenfels and Fredericka Elisabeth of Saxe- Eisenach.", "The marriage was childless."]], ["Johann Georg, Duke of Saxe-Weissenfels", ["Johann Georg, Duke of Saxe- Weissenfels( 13 July 1677, in Halle \u2013 16 March 1712, in Weissenfels), was a duke of Saxe- Weissenfels- Querfurt and a member of the House of Wettin.", "He was the third child and first surviving son of Johann Adolf I, Duke of Saxe- Weissenfels, by his first wife, Johanna Magdalena of Saxe- Altenburg."]], ["Frederick, Duke of Saxe-Weissenfels-Dahme", ["Frederick of Saxe- Weissenfels(\" Frederick Erdmann\"; b. Halle, 20 November", "1673- d. Dahme, 16 April 1715), was a German prince member of the House of Wettin and Duke of Saxe- Weissenfels- Dahme.", "He was the sixth son of Augustus, Duke of Saxe- Weissenfels but first- born from his second marriage with Johanna Walpurgis of Leiningen- Westerburg."]]]
supporting_facts: [["Albrecht of Saxe-Weissenfels", 1], ["Anna Maria of Mecklenburg-Schwerin", 0]]
evidences: [["Albrecht of Saxe-Weissenfels", "mother", "Anna Maria of Mecklenburg-Schwerin"], ["Anna Maria of Mecklenburg-Schwerin", "date of death", "11 December 1669"]]
answer: 11 December 1669