question: Who is Giulio Cybo's paternal grandmother?
context: [["Purnima (Hindi actress)", ["Purnima Das Verma( born Meherbhano Mohammad Ali) was an Indian film actress who worked predominantly in Hindi language films.", "She is the grandmother of actor Emraan Hashmi."]], ["Hannah Arnold", ["Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children."]], ["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."]], ["Giulio Cybo", ["Giulio I Cybo-Malaspina (1525 \u2013 18 May 1548)", "(or Cibo) was an Italian noble from Genoa who was marquis of Massa and lord of Carrara from 1546 until 1548.", "Born in Rome, he was the son of Ricciarda Malaspina, duchess of Massa and Carrara and Lorenzo Cybo, duke of Ferentillo who changed his name to Cybo-Malaspina, and a great-grandson of Pope Innocent VIII.", "His mother was the heir of the state of Massa and Carrara, which she had inherited from her father.", "In 1546, he challenged his mother for control of the duchy of Massa and Carrara.", "With the backing of Cosimo", "I de' Medici and Andrea Doria, he seized control by force in 1546.", "Soon after, his mother appealed to Charles V, Holy Roman Emperor, and Charles sent his forces to seize Massa while Giulio was away.", "In March 1546, Giulio married Peretta Doria (1526\u20131591), daughter of Tommaso and sister of Giannettino Doria.", "Giulio had been promised a large dowry, which he wanted to fund a return to power, but Andrea Doria refused, arguing that he'd already spent more than the dowry on Giulio's first attempt to seize the Duchy.", "At that time Andrea Doria was a Genoese admiral in the service of Emperor and King of Spain Charles V (with whom the petty Massese state had allied so far).", "After Doria refused to fund him, Giulio set a plot against him together with Ottobuono Fieschi, Ottobuono Fieschi and other Genoese refugees, also backed by the Strozzi family of Florence and Pope Paul III.", "The aim was to enter the city and kill Doria, the Spanish ambassador and other members of the Doria party.", "With the help of the pope and Piero Strozzi, the revolt should spread to the whole Italy, with the objective to expel the Spaniards from the country.", "The plot was discovered before its beginning and Cybo was arrested in Pontremoli.", "Despite an attempt to save him from his cousin Cosimo I of Tuscany, he was beheaded in Milan in May 1548.", "His body was buried in the Cathedral of Massa.", "At his mother's death in 1553, the states of Massa and Carrara were ultimately inherited by his brother Alberico I Cybo-Malaspina, Prince of Massa."]], ["Kaoru Hatoyama", ["After the elections of 2009, she became more widely known as the grandmother of Prime Minister Yukio Hatoyama and his politician brother Kunio Hatoyama."]], ["Diana Guardato", ["Diana Guardato was a member of the aristocratic Patrician Guardato family, and had three children with King Ferdinand I: Diana Guardato is the 16th- Great Grandmother of His Royal Highness Albert II of Belgium, 15th- Great Grandmother of His Majesty Juan Carlos", "I of Spain, 17th- Great Grandmother of Philippe of Belgium, 14th- Great Grandmother of His Majesty Manuel II of Portugal, 16th- Great Grandmother of Grand Duke Henri, as well as many others."]], ["Mona Hopton Bell", ["Mona Hopton Bell( 1867- 1940) was a British artist, best known for her portraits of civic figures.", "She was the grandmother of the painter Jean H. Bell."]], ["Lorenzo Cybo", ["Lorenzo Cybo Malaspina (20 July 1500 \u2013 14 March 1549) was an Italian general, who was duke of Ferentillo.", "Born at Sampierdarena (in what is modern Genoa), he was the son of Franceschetto Cybo and Maddalena de' Medici, daughter of \"Lorenzo de' Medici\" and his uncle was Pope Leo X.", "His paternal grandfather was Pope Innocent VIII.", "The latter pushed him to marry Ricciarda Malaspina, heir of the Malaspina family, by which he founded the Cybo-Malaspina family, including later the marquisses and princes of Massa-Carrara.", "A skilled soldier, he held the position of commander-in-chief of the Papal Army.", "His sons Giulio and Alberico held in succession the lordship of Massa and Carrara after Lorenzo's death, under the tutorage of their mother Ricciarda."]], ["Anne Denman", ["Anne Denman( 1587\u20131661) was born in Olde Hall, Retford, Nottinghamshire.", "Through a fortunate second marriage with Thomas Aylesbury, she became the grandmother of Lady Anne Hyde, Duchess of York and great- grandmother of Queen Mary II and Queen Anne."]], ["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."]]]
supporting_facts: [["Giulio Cybo", 2], ["Lorenzo Cybo", 1]]
evidences: [["Giulio I Cybo", "father", "Lorenzo Cybo"], ["Lorenzo Cybo", "mother", "Maddalena de' Medici"]]
answer: Maddalena de' Medici