question: Who is the maternal grandfather of Adelaide Of Aquitaine?
context: [["Gerloc", ["Gerloc (or Geirlaug), baptised in Rouen as Adela (or Ad\u00e8le) in 912, was the daughter of Rollo, of Normandy, Count of Rouen, and his wife, Poppa of Bayeux.", "She was the sister of William I Longsword of Normandy.", "In 935, she married William Towhead, the future Count of Poitou and Duke of Aquitaine.", "They had two children together before she died on 14 October 962:"]], ["Fred Le Deux", ["Frederick\" Fred\" Le Deux( born 4 December 1934) was an Australian rules footballer who played with Geelong in the Victorian Football League( VFL).", "He is the grandfather of Tom Hawkins."]], ["Adelaide of Rheinfelden", ["Adelaide of Rheinfelden( or Adelaide of Swabia)( 1060s \u2013 May 1090), was Queen Consort of Hungary by marriage to King Ladislaus I of Hungary."]], ["Henry Krause", ["Henry J.\" Red\" Krause, Jr.( August 28, 1913 \u2013 February 20, 1987) was an American football offensive lineman in the National Football League for the Brooklyn Dodgers and the Washington Redskins.", "He played college football at St. Louis University.", "He is the grandfather of Jennifer Krause", "He is the great grandfather of Payton Hoeing"]], ["Adelaide of Aquitaine", ["Adbelahide or Adele or Adelaide of Aquitaine (or Adelaide of Poitiers)", "(c. 945 or 952 \u2013 1004), was queen consort of France by marriage to Hugh Capet."]], ["Aimery I, Viscount of Ch\u00e2tellerault", ["Aimery I de Ch\u00e2tellerault( \u2013 7 November 1151), was the Viscount of Ch\u00e2tellerault and father of Aenor de Ch\u00e2tellerault.", "Through his daughter he was the grandfather of Eleanor of Aquitaine, successively queen of France and England."]], ["Abd al-Muttalib", ["Abd al- Muttalib Shaybah ibn Hashim( c. 497 \u2013 578) was the grandfather of Islamic prophet Muhammad."]], ["Philippa, Countess of Toulouse", ["Philippa( c. 1073 \u2013 28 November 1118) was\" suo jure\" Countess of Toulouse, as well as the Duchess of Aquitaine by marriage to Duke William IX of Aquitaine."]], ["Emma of Blois", ["Emma of Blois( 950\u201327 December 1003) was Duchess consort of Aquitaine by marriage to William IV, Duke of Aquitaine.", "She ruled Aquitaine as regent for her son, William V, Duke of Aquitaine, from 996 until 1004."]], ["Kaya Alp", ["Kaya Alp was, according to Ottoman tradition, the son of K\u0131z\u0131l Bu\u011fa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertu\u011frul, and the great grandfather of the Ottoman Empire founder, Osman I."]]]
supporting_facts: [["Adelaide of Aquitaine", 0], ["Gerloc", 0]]
evidences: [["Adelaide of Aquitaine", "mother", "Adele"], ["Gerloc", "father", "Rollo"]]
answer: Rollo