question: Who is Zwelonke Sigcawu's paternal grandfather?
context: [["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."]], ["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."]], ["Xolilizwe Mzikayise Sigcawu", ["Xolilizwe (Mzikayise Sigcawu; 6 June 1926 \u2013 31 December 2005) was the 11th King of the Gcaleka sub-group of the Xhosa people from 10 April 1965 to 31 December 2005.", "King Xolilizwe was an active member of the National House of Traditional Leaders.", "He was the oldest son of King Bungeni Zwelidumile Sigcawu."]], ["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"]], ["John Westley", ["Rev. John Westley( 1636 \u2013 78) was an English nonconformist minister.", "He was the grandfather of John Wesley( founder of Methodism)."]], ["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."]], ["Zwelonke Sigcawu", ["Zwelonke (Mpendulo Calvin Sigcawu; 4 April 1968 \u2013 14 November 2019) was a South African royal and King of the Xhosa people.", "He became king on 1 January 2006.", "The 12th king of the amaXhosa people, Zwelonke was born at Nqadu Great Palace in Willowvale in the Eastern Cape to Xolilizwe Mzikayise Sigcawu and Nozamile.", "King Zwelonke Sigcawu had been king of the AmaXhosa since the death of his father, King Xolilizwe Sigcawu, in 2005."]], ["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 Mackay (poet)", ["John Mackay( 1656\u20131754), known as( The Blind Piper), was a Scottish Gaelic poet and composer, and the grandfather of William Ross."]]]
supporting_facts: [["Zwelonke Sigcawu", 2], ["Xolilizwe Mzikayise Sigcawu", 2]]
evidences: [["Zwelonke Sigcawu", "father", "Xolilizwe Mzikayise Sigcawu"], ["Xolilizwe Mzikayise Sigcawu", "father", "Bungeni Zwelidumile Sigcawu"]]
answer: Bungeni Zwelidumile Sigcawu