question: Who is the paternal grandfather of Konrad Vi The Dean?
context: [["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."]], ["Konrad VI the Dean", ["Konrad VI the Dean  (ca. 1391 \u2013 3 September 1427) was a Duke of Ole\u015bnica, Ko\u017ale, half of Bytom and half of \u015acinawa since 1416 (with his brothers as co-rulers).", "He was the third son of Konrad III the Old, Duke of Ole\u015bnica, by his wife Judith.", "Like his two older and two younger brothers, at his baptism he received the name of Konrad, which was characteristic in this branch of the House of Piast."]], ["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."]], ["Guillaume Wittouck", ["Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.", "He was the Grandfather of industrialist Paul Wittouck."]], ["Lyon Cohen", ["Lyon Cohen( 1868\u20131937) was a Polish- born Canadian businessman and a philanthropist.", "He was the grandfather of singer/ poet Leonard Cohen."]], ["Henry Bryant (naturalist)", ["Henry Bryant( May 12, 1820 \u2013 February 2, 1867) was an American physician and naturalist.", "He was the grandfather of Henry Bryant Bigelow."]], ["Fujiwara no Nagara", [", also known as Fujiwara no Nagayoshi, was a Japanese statesman, courtier and politician of the early Heian period.", "He was the grandfather of Emperor Y\u014dzei."]], ["Konrad III the Old", ["Konrad III the Old  (\u2013 28 December 1412) was a Duke of Ole\u015bnica, Ko\u017ale, half of Bytom and half of \u015acinawa since 1377 (until 1403 with his father as co-ruler).", "He was the only son of Konrad II the Gray, Duke of Ole\u015bnica, by his wife Agnes, daughter of Casimir I, Duke of Cieszyn."]], ["Prithvipati Shah", ["Prithvipati Shah( ?\u20131716) was the king of the Gorkha Kingdom in the Indian subcontinent, present- day Nepal.", "He was the grandfather of Nara Bhupal Shah."]]]
supporting_facts: [["Konrad VI the Dean", 1], ["Konrad III the Old", 1]]
evidences: [["Konrad VI the Dean", "father", "Konrad III the Old"], ["Konrad III the Old", "father", "Konrad II the Gray"]]
answer: Konrad II the Gray