question: Who is the maternal grandfather of Vyacheslav Yaroslavich?
context: [["Abd al-Muttalib", ["Abd al- Muttalib Shaybah ibn Hashim( c. 497 \u2013 578) was the grandfather of Islamic prophet Muhammad."]], ["Ingegerd Olofsdotter of Sweden", ["Ingegerd Olofsdotter of Sweden, also known as Irene, Anna and Saint Anna (1001 \u2013 10 February 1050), was a Swedish princess and a Grand Princess of Kiev.", "She was the daughter of Swedish King Olof Sk\u00f6tkonung and Estrid of the Obotrites and the consort of Yaroslav I the Wise of Kiev.", "Ingegerd or Saint Anna is often confused with the mother of Saint Vladimir \u201cthe Enlightener\u201d of the Rus.", "This is mainly because Ingegerd and Yaroslav also had a son named Vladimir.", "However, Saint Vladimir was the father of Ingegerd\u2019s husband", "Yaroslav I \u201cthe Wise\u201d, thus making her Saint Vladimir\u2019s daughter-in-law.", "Saint Vladimir was the son of Sviatoslav and Malusha."]], ["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."]], ["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"]], ["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."]], ["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."]], ["Boris Vyacheslavich", ["Boris Vyacheslavich was Prince of Chernigov for eight days in 1077.", "He was the son of Vyacheslav Yaroslavich, Prince of Smolensk.", "Following his father's death in 1057, the child Boris was debarred from his inheritance.", "He died fighting against his unclesVsevolod Yaroslavich, Prince of Chernigov and Izyaslav Yaroslavich, Grand Prince of Kievon 3 October 1078."]], ["John Westley", ["Rev. John Westley( 1636 \u2013 78) was an English nonconformist minister.", "He was the grandfather of John Wesley( founder of Methodism)."]], ["Lyon Cohen", ["Lyon Cohen( 1868\u20131937) was a Polish- born Canadian businessman and a philanthropist.", "He was the grandfather of singer/ poet Leonard Cohen."]], ["Vyacheslav Yaroslavich", ["Vyacheslav Yaroslavich or Viacheslav Yaroslavich was the Prince of Smolensk from 1054 until his death in 1059.", "He was son of Yaroslav the Wise and Ingegerd Olofsdotter of Sweden.", "About Vyacheslav, there is almost no information.", "Some documents point out the fact of him having a son, Boris Vyacheslavich, who challenged", "Vsevolod I sometime in 1077-1078."]]]
supporting_facts: [["Vyacheslav Yaroslavich", 1], ["Ingegerd Olofsdotter of Sweden", 1]]
evidences: [["Vyacheslav Yaroslavich", "mother", "Ingegerd Olofsdotter of Sweden"], ["Ingegerd Olofsdotter of Sweden", "father", "Olof Sk\u00f6tkonung"]]
answer: Olof Skötkonung