question: Who is Patricius (Caesar)'s paternal grandfather?
context: [["Lyon Cohen", ["Lyon Cohen( 1868\u20131937) was a Polish- born Canadian businessman and a philanthropist.", "He was the grandfather of singer/ poet Leonard Cohen."]], ["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."]], ["Patricius (Caesar)", ["Patricius also \"Patriciolusfloruit\" 459-471) was a son of the powerful general Aspar, for almost two decades the effective power behind the throne of the Eastern Roman Empire.", "Of mixed Roman and barbarian origin, he was destined for the imperial throne by his father, and rose to the rank of \"Caesar\" under Emperor Leo", "I, before his father's murder in 471 led to his own downfall and possibly death."]], ["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."]], ["Abd al-Muttalib", ["Abd al- Muttalib Shaybah ibn Hashim( c. 497 \u2013 578) was the grandfather of Islamic prophet Muhammad."]], ["John Westley", ["Rev. John Westley( 1636 \u2013 78) was an English nonconformist minister.", "He was the grandfather of John Wesley( founder of Methodism)."]], ["Aspar", ["Flavius Ardabur Aspar (c. 400471) was an Eastern Roman patrician and magister militum (\"master of soldiers\") of Alanic-Gothic descent.", "As the general of a Germanic army in Roman service, Aspar exerted great influence on the Eastern Roman Emperors for half a century, from the 420s to his death in 471, over Theodosius II, Marcian and Leo I, who, in the end, had him killed.", "His death led to the ending of the Germanic domination of Eastern Roman policy."]], ["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."]], ["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."]], ["Guillaume Wittouck", ["Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.", "He was the Grandfather of industrialist Paul Wittouck."]]]
supporting_facts: [["Patricius (Caesar)", 0], ["Aspar", 0]]
evidences: [[" Patricius", "father", "Aspar"], ["Aspar", "father", "Ardabur"]]
answer: Ardabur