question: Who is the paternal grandfather of Zhengde Emperor?
context: [["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."]], ["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."]], ["John Westley", ["Rev. John Westley( 1636 \u2013 78) was an English nonconformist minister.", "He was the grandfather of John Wesley( founder of Methodism)."]], ["Abd al-Muttalib", ["Abd al- Muttalib Shaybah ibn Hashim( c. 497 \u2013 578) was the grandfather of Islamic prophet Muhammad."]], ["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."]], ["Zhengde Emperor", ["The Zhengde Emperor (27October 149120April 1521) was the 11th Emperor of the Ming dynasty, reigned from 1505 to 1521.", "Born Zhu Houzhao, he was the Hongzhi Emperor's eldest son.", "Zhu Houzhao took the throne at only 14 with the era name", "Zhengde meaning \"Right virtue\" or \"Rectification of virtue\".", "He was known for favoring eunuchs such as Liu Jin and became infamous for his childlike behavior.", "He eventually died at age 29 from a illness he contracted after drunkenly falling off a boat into the Yellow River.", "He left behind no sons and was succeeded by his first cousin Zhu Houcong."]], ["Hongzhi Emperor", ["The Hongzhi Emperor  (30 July 1470 \u2013 9 June 1505) was the 10th Emperor of the Ming dynasty, reigned from 1487 to 1505.", "Born Zhu Youcheng", ", he was the eldest surviving son of the Chenghua Emperor and his reign as emperor of China is called the \"Hongzhi Silver Age\".", "His era name, \"Hongzhi\", means \"great government.\"", "A peace-loving emperor, the Hongzhi Emperor also had only one empress and no concubines, granting him the distinction of being the sole perpetually monogamous emperor in Chinese history, besides Emperor Fei.", "He was emperor during the middle years of the Ming dynasty."]], ["John Mackay (poet)", ["John Mackay( 1656\u20131754), known as( The Blind Piper), was a Scottish Gaelic poet and composer, and the grandfather of William Ross."]], ["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."]]]
supporting_facts: [["Zhengde Emperor", 1], ["Hongzhi Emperor", 2]]
evidences: [["Zhengde Emperor", "father", "Hongzhi"], ["Hongzhi Emperor", "father", "Chenghua"]]
answer: Chenghua