question: Who is Emperor Qianshao Of Han's maternal grandfather?
context: [["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."]], ["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."]], ["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"]], ["Lyon Cohen", ["Lyon Cohen( 1868\u20131937) was a Polish- born Canadian businessman and a philanthropist.", "He was the grandfather of singer/ poet Leonard Cohen."]], ["Abd al-Muttalib", ["Abd al- Muttalib Shaybah ibn Hashim( c. 497 \u2013 578) was the grandfather of Islamic prophet Muhammad."]], ["Emperor Qianshao of Han", ["Emperor Qianshao of Han (193 BC \u2013 15 June 184 BC)", ", personal name said to be Liu Gong , was the third emperor of the Han Dynasty in China.", "He was a son, likely the oldest son, of Emperor Hui, likely by a concubine\u2014although there is some controversy on the subject\u2014and adopted by Emperor Hui's wife, Empress Zhang Yan.", "At the instigation of his grandmother, Empress Dowager L\u00fc, Empress Zhang had Emperor Qianshao's mother put to death.", "Very little about Emperor Qianshao's life and personality is known.", "There are only a few major important events in his life that are documented (which does not even include the year of his birth).", "In 188 BC, his father Emperor Hui died, and he, who had been previously made Crown Prince, succeeded to the throne.", "However, his grandmother, now Grand Empress Dowager L\u00fc, publicly presided over all government affairs.", "Sometime in or before 184 BC, Emperor Qianshao discovered that he was not in fact now-Empress Dowager Zhang's son and that his mother had been put to death.", "He made the mistake of remarking that when he grew up, those who killed his mother would pay for this.", "Grand Empress Dowager L\u00fc, once she heard of this, had him secretly imprisoned within the palace and publicly announced that he was severely ill and unable to receive anyone.", "After some time, she told the officials that he continued to be ill and incapable of governing, and that he had also suffered a psychosis.", "She proposed that he be deposed and replaced.", "The officials complied with her wishes, and he was deposed and put to death.", "He was succeeded by his brother Liu Yi, whose name was then changed to Liu Hong.", "Emperor Qianshao, considered to be a mere puppet of Grand Empress Dowager L\u00fc, is often omitted from the official list of emperors of the Han Dynasty."]], ["Liu Xiong", ["Liu Xiong was an official who lived during the Eastern Han dynasty of China.", "He was the father of Liu Hong and grandfather of the Shu Han warlord Liu Bei.", "According to the Three Kingdoms article, he is a descendant of Liu Sheng, Prince of Zhongshan."]], ["John Westley", ["Rev. John Westley( 1636 \u2013 78) was an English nonconformist minister.", "He was the grandfather of John Wesley( founder of Methodism)."]], ["Zhao Shoushan", ["Zhao Shoushan( 12 November 1894 \u2013 20 June 1965) was a KMT general and later Chinese Communist Party politician.", "He is the grandfather of Zhao Leji."]], ["Empress Zhang Yan", ["Zhang Yan (died 163 BC), known formally as Empress Xiaohui (\u5b5d\u60e0\u7687\u540e) was an empress during the Han Dynasty.", "She was the daughter of Princess Yuan of Lu (the only daughter of Emperor Gao (Liu Bang) and his wife Empress L\u00fc) and her husband Zhang Ao (\u5f35\u6556, son of Zhang Er), the Prince of Zhao and later Marquess of Xuanping.", "In 192 BC, at the insistence of then-Empress Dowager L\u00fc, Lady Yan married her uncle Emperor Hui, the son of Emperor Gao and Empress Dowager L\u00fc, and she was created empress.", "The marriage was a childless one.", "At Empress Dowager L\u00fc's instruction, Empress Zhang took several male children as her own and killed their mothers.", "(Whether these children were Emperor Hui's is a matter of controversy, although it appears likely that they were Emperor Hui's children by his concubines.)", "When Emperor Hui died in 188 BC at the age of 22, one of the children that Empress Zhang adopted became emperor (as Emperor Qianshao), but Grand Empress Dowager L\u00fc had effective total control of the imperial government.", "Empress Zhang, was not made empress dowager as this title was retained by Empress Dowager L\u00fc who never claimed the title Grand Empress Dowager and did not appear to have significant influence.", "Nevertheless, when Emperor Qianshao found out in 184 BC that he was not actually her child, he made a careless comment that he would take vengeance on her\u2014at which Empress Dowager L\u00fc had him deposed and executed, and replaced him with his brother Liu Hong (as Emperor Houshao), who was also adopted by Empress Zhang.", "It was during Emperor Qianshao's reign that Empress Zhang's brother Zhang Yan (\u5f35\u5043, pinyin Zh\u0101ng Y\u01cen\u2014notice difference in tone) was created the Prince of Lu.", "After Empress Dowager L\u00fc died in 180 BC, and the L\u00fc clan overthrown and slaughtered by the officials opposed to the L\u00fcs in the L\u00fc Clan Disturbance, Emperor Houshao was deposed and killed.", "Empress Zhang was not killed, but she was put under house arrest in a palace to the north after being deposed from her position as empress and henceforth referred to as Empress Hui.", "Her brother, the Prince of Lu, was also deposed and reduced in rank to Marquess of Nangong.", "After this no records exist of her later life until her death.", "Empress Zhang died in 163 BC and was buried with her husband of merely four years."]]]
supporting_facts: [["Emperor Qianshao of Han", 2], ["Empress Zhang Yan", 1]]
evidences: [["Liu Gong", "mother", "Empress Zhang Yan"], ["Empress Zhang Yan", "father", "Zhang Ao"]]
answer: Zhang Ao