question: Who is Philipp I, Count Of Hanau-Münzenberg's maternal grandfather?
context: [["Philipp I, Count of Hanau-M\u00fcnzenberg", ["Count Philipp I of Hanau-M\u00fcnzenberg, nicknamed \"Philipp the Younger\", (20 September 1449, at Windecken Castle \u2013 26 August 1500)", "was a son of Count Reinhard III of Hanau and Countess Palatine Margaret of Mosbach.", "He was the Count of Hanau from 1452 to 1458.", "The county was then divided between him and his uncle", "Philipp the Elder.", "Philipp the Younger", "received Hanau-M\u00fcnzenberg and ruled there from 1458 until his death."]], ["Countess Catharina Belgica of Nassau", ["Countess Catharina Belgica of Nassau (31 July 1578 \u2013 12 April 1648) was a countess of Hanau-M\u00fcnzenberg by marriage to Philip Louis II, Count of Hanau-M\u00fcnzenberg, and regent of Hanau-M\u00fcnzenberg from 1612 until 1626.", "She was the third daughter of William the Silent and his third spouse Charlotte of Bourbon."]], ["Countess Palatine Margaret of Mosbach", ["Countess Palatine Margaret of Mosbach (2 March 1432 \u2013 14 September 1457) was the eldest daughter of Count Palatine Otto I of Mosbach and his wife, Johanna of Bavaria-Landshut.", "She married on 11 July 1446 to Count Reinhard III of Hanau, who succeeded his father as ruling Count in 1451."]], ["Johanna of Hanau-M\u00fcnzenberg", ["Countess Johanna of Hanau-M\u00fcnzenberg (1610 \u2013 13 September 1673) was a daughter of Count Albert of Hanau-M\u00fcnzenberg-Schwarzenfels and Countess Ehrengard of Isenburg (1577 \u2013 1637).", "Hanau-M\u00fcnzenberg-Schwarzenfels was a cadet branch of Hanau-M\u00fcnzenberg."]], ["Philipp III, Count of Hanau-M\u00fcnzenberg", ["Count Phillip III of Hanau- M\u00fcnzenberg( 30 November 1526 \u2013 14 November 1561) ruled the County of Hanau- M\u00fcnzenberg from 1529 until his death."]], ["Philipp Ludwig III, Count of Hanau-M\u00fcnzenberg", ["Count Philipp Ludwig III of Hanau- M\u00fcnzenberg( in Hanau \u2013 12 November 1641 in The Hague) was the last count of the main Hanau- M\u00fcnzenberg line of the House of Hanau.", "After his death, the Hanau- M\u00fcnzenberg- Schwarzenfels line inherited Hanau- M\u00fcnzenberg."]], ["Reinhard IV, Count of Hanau-M\u00fcnzenberg", ["Count Reinhard IV of Hanau- M\u00fcnzenberg( born: 14 March 1473 \u2013 died: 30 January 1512) succeeded in 1500 his father Philipp I of Hanau- M\u00fcnzenberg( 1449 \u2013 1500) in the government of the County of Hanau- M\u00fcnzenberg.", "He served as co-regent from 1496 onwards."]], ["Philipp Moritz, Count of Hanau-M\u00fcnzenberg", ["Philipp Moritz of Hanau- M\u00fcnzenberg( 25 August 1605 \u2013 3 August 1638 in Hanau) succeeded his father as Count of Hanau- M\u00fcnzenberg in 1612."]], ["Albrecht of Hanau-M\u00fcnzenberg", ["Albert of Hanau- M\u00fcnzenberg( 12 November 1579 \u2013 19 December 1635 in Strasbourg) was the younger son of Philip Louis I of Hanau- M\u00fcnzenberg( 1553- 1580) and his wife, Countess Magdalena of Waldeck( 1558- 1599).", "The only sons of his parents to reach adulthood were Albert and his elder brother Philip Louis II.", "Albert's son John Ernest was the last male member of the Hanau- M\u00fcnzenberg line of the House of Hanau."]], ["Philipp Ludwig I, Count of Hanau-M\u00fcnzenberg", ["Philipp Ludwig I, Count of Hanau- M\u00fcnzenberg( 21 November 1553 \u2013 4 February 1580) succeeded his father in the government of the County of Hanau- M\u00fcnzenberg in 1561."]]]
supporting_facts: [["Philipp I, Count of Hanau-M\u00fcnzenberg", 1], ["Countess Palatine Margaret of Mosbach", 0]]
evidences: [["Count Philipp I of Hanau-M\u00fcnzenberg", "mother", "Countess Palatine Margaret of Mosbach"], ["Countess Palatine Margaret of Mosbach", "father", "Otto I"]]
answer: Otto I