question: Who is Bernard Of Niemodlin's paternal grandfather?
context: [["Nicholas II of Niemodlin", ["Nicholas II of Niemodlin( \u2013 27 June 1497), was a Duke of Opole- Brzeg- Strzelce- Niemodlin in 1476( as co-ruler of his father) and sole Duke of Niemodlin from 1476 until his death.", "He was the third son of Duke Nicholas I of Opole by his wife Agnes, daughter of Duke Louis II of Brzeg."]], ["Boles\u0142aw II of Niemodlin", ["Boles\u0142aw II of Niemodlin( 1326/35 \u2013 by 25 June 1368), was a Duke of Niemodlin since 1365 until his death( with his brothers as co-rulers).", "He was the eldest son of Boles\u0142aw the Elder, Duke of Niemodlin, by his wife Euphemia, daughter of Henry VI the Good, Duke of Wroc\u0142aw."]], ["Robert of Ch\u00e2tillon", ["Robert of Ch\u00e2tillon(?- 1210), duke and bishop of Langres from 1205 until his death.", "He is also notable as a peer of France and a cousin of Bernard of Clairvaux."]], ["Bolko III of Strzelce", ["Bolko III of Strzelce (also known as of Opole; ; \u2013 21 October 1382) was a Duke of Opole during 1356\u20131370 (with his brothers as co-rulers) and Duke of Strzelce from 1375 until his death.", "He was the second son of Duke Bolko II of Opole by his wife Elisabeth, daughter of Duke Bernard of \u015awidnica."]], ["Bernard of Thiron", ["Bernard of Thiron, also known as Bernard of Ponthieu and Bernard of Abbeville, was the founder of the Tiron Abbey and the Tironensian Order."]], ["Henry of Niemodlin", ["Henry of Niemodlin( after 1345 \u2013 14 September 1382), was a Duke of Niemodlin since 1365 until his death( with his brothers as co-rulers until 1369).", "He was the third and youngest son of Boles\u0142aw the Elder, Duke of Niemodlin, by his wife Euphemia, daughter of Henry VI the Good, Duke of Wroc\u0142aw."]], ["Geoffrey of Clairvaux", ["Geoffrey of Clairvaux, or Geoffrey of Auxerre, was the secretary and biographer of Bernard of Clairvaux and later abbot of a number of monasteries in the Cistercian tradition."]], ["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"]], ["Bernard of Niemodlin", ["Bernard of Niemodlin (b. 1374/78 \u2013 d. 2/4 April 1455), was a Duke of Strzelce and Niemodlin during 1382\u20131400 (with his brothers as co-rulers), Duke of Opole during 1396\u20131400 (with his brother as co-ruler), from 1400 until 1450 sole ruler over Strzelce and Niemodlin, from 1401 ruler over Olesno and Lubliniec, from 1420 ruler over Prudnik and in 1424 ruler over G\u0142og\u00f3wek, during 1434\u20131450 ruler over Kluczbork and Byczyna and from 1450 ruler over only Olesno.", "He was the fourth and youngest son of Duke Bolko III of Strzelce by his wife Anna, probably daughter of Duke Jan I of O\u015bwi\u0119cim."]], ["Wenceslaus of Niemodlin", ["Wenceslaus of Niemodlin( 1336/46 \u2013 June 1369) was a Duke of Niemodlin since 1365 until his death( with his brothers as co-rulers), and Duke of Gliwice from 1364.", "He was the second son of Boles\u0142aw the Elder, Duke of Niemodlin, by his wife Euphemia, daughter of Henry VI the Good, Duke of Wroc\u0142aw."]]]
supporting_facts: [["Bernard of Niemodlin", 1], ["Bolko III of Strzelce", 1]]
evidences: [["Bernard of Niemodlin", "father", "Bolko III of Strzelce"], ["Bolko III of Strzelce", "father", "Bolko II of Opole"]]
answer: Bolko II of Opole