question: Who is Cedda's paternal grandfather?
context: [["Abd al-Muttalib", ["Abd al- Muttalib Shaybah ibn Hashim( c. 497 \u2013 578) was the grandfather of Islamic prophet Muhammad."]], ["Cedda", ["Cedda (alternatively Cadda or Chad) was the second son of Cuthwine and consequently a member of the Wessex family.", "He was born c. 590 and his death date is unknown.", "He had one recorded son, Coenberht, the father of King Caedwalla of Wessex.", "His name is related to that of St Chad of Mercia", "(spelt Ceadda in Bede's Ecclesiastical History) and is derived from the Brythonic (British Celtic) root 'cat' or 'cad' meaning \"battle.", "\"", "It is one of a number of apparently Celtic names found in the West Saxon ruling family, including that of Cedda's grandson Caedwalla."]], ["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."]], ["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."]], ["John Westley", ["Rev. John Westley( 1636 \u2013 78) was an English nonconformist minister.", "He was the grandfather of John Wesley( founder of Methodism)."]], ["Cuthwine of Wessex", ["Cuthwine, born c. 565, was a member of the House of Wessex, the son of Ceawlin of Wessex.", "After the deposition of his father, Ceawlin, from the throne of Wessex in 592, he did not inherit the throne, which instead passed to his cousin, Ceol.", "Cuthwine went into exile for many decades, remaining a strong leader of the Saxons and passing on the royal line through his three sons."]], ["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."]], ["Guillaume Wittouck", ["Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.", "He was the Grandfather of industrialist Paul Wittouck."]], ["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: [["Cedda", 0], ["Cuthwine of Wessex", 0]]
evidences: [["Cedda", "father", "Cuthwine"], ["Cuthwine", "father", "Ceawlin of Wessex"]]
answer: Ceawlin of Wessex