question: Who is John Of Hesse-Braubach's co-husband?
context: [["Louis I, Grand Duke of Hesse", ["Louis I, Grand Duke of Hesse( 14 June 1753 in Prenzlau \u2013 6 April 1830 in Darmstadt) was\" Landgrave of Hesse- Darmstadt\"( as\" Louis X\") and later the first\" Grand Duke of Hesse and by Rhine\"."]], ["Landgravine Auguste of Hesse-Homburg", ["Landgravine\" Auguste\" Fredericka of Hesse- Homburg( full German name:\" Auguste Friederike, Landgr\u00e4fin von Hessen- Homburg\"; 28 November 1776, Bad Homburg vor der H\u00f6he, Landgraviate of Hesse- Homburg, Holy Roman Empire \u2013 1 April 1871, Ludwigslust, Grand Duchy of Mecklenburg- Schwerin), was a member of the House of Hesse and a Landgravine of Hesse- Homburg by birth.", "Through her marriage she was also a member of the House of Mecklenburg and Hereditary Grand Duchess of Mecklenburg- Schwerin.", "She was the sixth child and fourth daughter of Frederick V, Landgrave of Hesse- Homburg and his wife Landgravine Caroline of Hesse- Darmstadt, in turn daughter of Louis IX, Landgrave of Hesse- Darmstadt."]], ["Johannetta of Sayn-Wittgenstein (1632\u20131701)", ["Johannetta of Sayn-Wittgenstein (27 August 1632 \u2013 28 September 1701), was Sovereign Countess of Sayn-Wittgenstein-Sayn-Altenkirchen from 1648 to 1701.", "She was also Landgravine of Hesse-Braubach by marriage to John, Landgrave of Hesse-Braubach, and Duchess of Saxe-Marksuhl (later Saxe-Eisenach) by marriage to John George I, Duke of Saxe-Eisenach."]], ["Prince Wilhelm of Hesse-Philippsthal-Barchfeld", ["Prince Wilhelm of Hesse(\" Wilhelm Ernst Alexis Hermann\"; 1 March 1905 \u2013 30 April 1942) was German soldier and heir to the headship of the Hesse- Philippsthal line of the House of Hesse.", "As a member of the House of Hesse he was styled\" His Highness Prince Wilhelm of Hesse\"."]], ["Philip, Landgrave of Hesse-Philippsthal", ["Philip of Hesse- Philippsthal( 14 December 1655 \u2013 18 June 1721) was the son of William VI, Landgrave of Hesse- Kassel and Hedwig Sophia of Brandenburg.", "He was the first landgrave of Hesse- Philippsthal from 1663 to 1721 and the founder of the fifth branch of the house of Hesse."]], ["John of Hesse-Braubach", ["John of Hesse-Braubach (17 June 1609, Darmstadt - 1 April 1651, Ems) was a German nobleman and general.", "He was the Landgrave of Hesse-Braubach.", "His parents were Louis V, Landgrave of Hesse-Darmstadt and Magdalene of Brandenburg.", "He was married on 30 September 1647 to Johannetta of Sayn-Wittgenstein, the daughter of Ernest, Count of Sayn-Wittgenstein-Sayn and Louise Juliane of Erbach.", "The marriage was childless.", "Johannetta later married Johann Georg I, Duke of Saxe-Eisenach."]], ["Charles I, Landgrave of Hesse-Philippsthal", ["Charles I, Landgrave of Hesse- Philippsthal( 23 September 1682 \u2013 8 May 1770) was a member of the House of Hesse and Landgrave of Hesse- Philippsthal from 1721 until his death."]], ["Charles I, Landgrave of Hesse-Kassel", ["Charles of Hesse- Kassel( 3 August 1654 \u2013 23 March 1730), of the House of Hesse, was the Landgrave of Hesse- Kassel from 1670 to 1730."]], ["Moritz, Landgrave of Hesse", ["Moritz, Prince and Landgrave of Hesse(\" Moritz Friedrich Karl Emanuel Humbert\" 6 August 1926 \u2013 23 May 2013) was the son of Prince Philip, Landgrave of Hesse, and the head of the House of Brabant and the German House of Hesse."]], ["George II, Landgrave of Hesse-Darmstadt", ["George II of Hesse- Darmstadt,( 17 March 1605, in Darmstadt \u2013 11 June 1661) was the Landgrave of Hesse- Darmstadt from 1626 to 1661.", "He was the son of Ludwig V and Magdalene of Brandenburg.", "He married Sophia Eleonore of Saxony on 1 April 1627.", "From 1645 to 1648 he led the so- called\" Hessenkrieg\" against the Landgravine Amalie Elizabeth of Hesse- Kassel over the inheritance of the extinct line of Hesse- Marburg.", "This conflict resulted in the loss of Hesse- Marburg to Hesse- Kassel."]]]
supporting_facts: [["John of Hesse-Braubach", 3], ["Johannetta of Sayn-Wittgenstein (1632\u20131701)", 1]]
evidences: [["John of Hesse-Braubach", "spouse", "Johannetta of Sayn-Wittgenstein"], ["Johannetta of Sayn-Wittgenstein", "spouse", "John George I, Duke of Saxe-Eisenach"]]
answer: John George I, Duke of Saxe-Eisenach