question: Who is Wenceslaus Of Żagań's paternal grandfather?
context: [["Henry VIII the Sparrow", ["Henry VIII( VI) the Sparrow( \u2013 14 March 1397) was a Duke of \u017baga\u0144 \u2013 G\u0142og\u00f3w during 1368 \u2013 1378( as a co-ruler with his brothers), from 1378 ruler over Zielona G\u00f3ra, Szprotawa, Ko\u017cuch\u00f3w, Przemk\u00f3w and Sulech\u00f3w, and since 1395 ruler over half of G\u0142og\u00f3w, \u015acinawa and Bytom Odrza\u0144ski.", "He was the second son of Henry V of Iron, Duke of \u017baga\u0144 \u2013 G\u0142og\u00f3w, by his wife Anna, daughter of Duke Wenceslaus of P\u0142ock.", "The origin of his nickname\" SparrowWr\u00f3bel\") is unknown."]], ["Balthasar of \u017baga\u0144", ["Balthasar, Duke of \u017baga\u0144( \u2013 Przew\u00f3z, 15 July 1472), was a Duke of \u017baga\u0144- Przew\u00f3z since 1439( with his brothers as co-rulers until 1449), from 1449 Duke of \u017baga\u0144.", "Deposed during 1461 \u2013 1468, he recovered the Duchy in this year until shortly before his death.", "He was the oldest son of Duke Jan I of \u017baga\u0144 by his wife Scholastika, daughter of Rudolf III, Duke of Saxe- Wittemberg and Elector of Saxony.", "He was named after his maternal great- grandfather, Balthasar, Landgrave of Thuringia( Scholastika's maternal grandfather)."]], ["Henry VI the Older", ["Henry VI( IV) the Older( bef. 1345 \u2013 5 December 1393) was a Duke of \u017baga\u0144- G\u0142og\u00f3w since 1368( with his brothers as co-rulers until 1378).", "He was the oldest son of Henry V of Iron, Duke of \u017baga\u0144- G\u0142og\u00f3w, by his wife Anna, daughter of Duke Wenceslaus of P\u0142ock."]], ["Henry Wenceslaus, Duke of Oels-Bernstadt", ["Henry Wenceslaus, Duke of Oels- Bernstadt( also known as:\" Henry Wenceslaus of Pod\u011bbrady Henry Wenceslaus of Bernstadt\" or\" Henry Wenceslaus of M\u00fcnsterberg\",,, or, or; 7 October 1592, probably in Ole\u015bnica \u2013 21 August 1639, probably in Bernstadt) was Duke of Bernstadt from 1617 until his death.", "He also used the titles of Duke of M\u00fcnsterberg and Count of Glatz, although he never ruled those territories.", "From 1629 to 1639 he was Governor of Silesia."]], ["Wenceslaus of \u017baga\u0144", ["Wenceslaus of \u017baga\u0144  (ca. 1434 \u2013 29 April 1488) was a Duke of \u017baga\u0144-Przew\u00f3z since 1439 (with his brothers as co-rulers until 1449), from 1449 Duke of Przew\u00f3z (as co-ruler of his younger brother).", "He was the third son of Duke Jan I of \u017baga\u0144 by his wife Scholastika, daughter of Rudolf III, Duke of Saxe-Wittemberg and Elector of Saxony.", "His uncle, Joe II of \u017baga\u0144, was his guiding mentor through childhood."]], ["Adam Wenceslaus, Duke of Cieszyn", ["Adam Wenceslaus of Cieszyn( 12 December 1574 \u2013 13 July 1617), was a Duke of Cieszyn from 1579 until his death.", "He was the second but only surviving son of Wenceslaus III Adam, Duke of Cieszyn, by his second wife Sidonia Katharina, daughter of Francis I, Duke of Saxe- Lauenburg.", "His older half- brother, Frederick Casimir, only son of Wenceslaus III Adam's first marriage, died a few years before he was born, in 1571."]], ["Rudolf of \u017baga\u0144", ["Rudolf of \u017baga\u0144( ca. 1418 \u2013 18 September 1454) was a Duke of \u017baga\u0144- Przew\u00f3z since 1439( with his brothers as co-rulers until 1449), from 1449 Duke of \u017baga\u0144( as co-ruler of his older brother).", "He was the second son of Duke Jan I of \u017baga\u0144 by his wife Scholastika, daughter of Rudolf III, Duke of Saxe- Wittemberg and Elector of Saxony.", "He was named after his maternal grandfather."]], ["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."]], ["Jan I of \u017baga\u0144", ["Jan I of \u017baga\u0144  (\u2013 12 April 1439) was a Duke of \u017baga\u0144-G\u0142og\u00f3w, since 1397 (until 1412 with his brothers as co-rulers), since 1403 Duke of \u017baga\u0144, Krosno Odrza\u0144skie and \u015awiebodzin (again, until 1412 with his brothers as co-rulers) and since 1412 sole ruler of \u017baga\u0144 and Przew\u00f3z.", "He was the eldest son of Henry VIII the Sparrow, Duke of G\u0142og\u00f3w by his wife Katharina, daughter of Duke W\u0142adys\u0142aw of Opole."]], ["Sophia of Bavaria", ["Sophia of Bavaria (1376 \u2013 4 November 1428) was a Queen of Bohemia and the spouse of Wenceslaus, King of Bohemia and King of the Romans.", "She was briefly interim regent of Bohemia after the death of Wenceslaus in 1419."]]]
supporting_facts: [["Wenceslaus of \u017baga\u0144", 1], ["Jan I of \u017baga\u0144", 1]]
evidences: [["Wenceslaus of \u017baga\u0144", "father", "Jan I of \u017baga\u0144"], ["Jan I of \u017baga\u0144", "father", "Henry VIII the Sparrow"]]
answer: Henry VIII the Sparrow