question: Who is William I, Count Of Burgundy's father?
context: [["Sibylla of Burgundy, Duchess of Burgundy", ["Sybilla of Burgundy( 1065 \u2013 1103), was a French noble, Duchess consort of Burgundy by marriage to Eudes I, Duke of Burgundy.", "She was a daughter of William I, Count of Burgundy and Stephanie.", "She was married to Eudes I, Duke of Burgundy in 1080.", "Children:"]], ["Florine of Burgundy", ["Florine of Burgundy( 1083\u20131097) was a French crusader.", "She was the daughter of Eudes I, Duke of Burgundy and Sybilla of Burgundy.", "Her maternal grandfather was William I, Count of Burgundy.", "Florine was married to Sweyn the Crusader, a son of Sweyn II of Denmark."]], ["Humbert II, Count of Savoy", ["Umberto II, nicknamed the Fat( 1065, Carignano, Piedmont \u2013 19 October 1103), was Count of Savoy from 1080 until his death in 1103.", "He was the son of Amadeus II of Savoy.", "He was married to Gisela of Burgundy, daughter of William I, Count of Burgundy, and had 7 children:"]], ["Robert, Count of Burgundy", ["Robert, Count of Burgundy( 1300 \u2013 1315) was the son of Otto IV, Count of Burgundy and Mahaut, Countess of Artois.", "He was count of Burgundy between 1302 and 1315.", "He died in 1315, and was succeeded by his sister, Joan II, and brother- in- law, Philip II, later queen and king of France."]], ["Isabella of Bourbon", ["Isabella of Bourbon, Countess of Charolais( 1434 \u2013 25 September 1465) was the second wife of Charles the Bold, Count of Charolais and future Duke of Burgundy.", "She was a daughter of Charles I, Duke of Bourbon and Agnes of Burgundy, and the mother of Mary of Burgundy, heiress of Burgundy."]], ["Reginald I, Count of Burgundy", ["Reginald I, Count of Burgundy( aka Renaud I, Count Palatine of Burgundy) was the second Count of the Free County of Burgundy.", "Born in 986, he was the son of Otto- William, Count of Burgundy( the first Count) and Ermentrude de Roucy.", "In 1016, Reginald married Alice of Normandy.", "He succeeded to the County on his father's death in 1026.", "Reginald was succeeded by his son, William I, on his death in 1057.", "Reginald married Alice and had the following children:"]], ["William I, Count of Burgundy", ["William I (1020 \u2013 12 November 1087), called the Great (\"le Grand\" or \"T\u00eate Hardiethe Stubborn\"), was Count of Burgundy from 1057 to 1087 and M\u00e2con from 1078 to 1087.", "He was a son of Renaud I and Alice of Normandy, daughter of Richard II, Duke of Normandy.", "William was the father of several notable children, including Pope Callixtus II.", "In 1057, he succeeded his father and reigned over a territory larger than that of the Franche-Comt\u00e9 itself.", "In 1087, he died in Besan\u00e7on, Prince-Archbishopric of Besan\u00e7on, Holy Roman Empire -- an independent city within the County of Burgundy.", "He was buried in Besan\u00e7on's Cathedral of St John.", "William married a woman named (a.k.a. Etiennette).", "Children of Stephanie (order uncertain):"]], ["H\u00e9ctor Barrantes", ["H\u00e9ctor Barrantes Sansoni( 1939\u20131990) was an Argentine polo player.", "He was the stepfather of Sarah, Duchess of York."]], ["Alice of Normandy", ["Alice or Adeliza, Adelaide or Aelis", "(c. 1002 \u2013 1038) was a countess consort of Burgundy, the daughter of Richard II, Duke of Normandy (972\u20131026) and Judith of Brittany.", "She married Reginald I, Count of Burgundy and had the following children:"]], ["Jerrold Wexler", ["Jerrold Wexler( June 27, 1924 \u2013 November 10, 1992) was a noted American businessman and film producer.", "He was the brother of cinematographer Haskell Wexler and the stepfather of actress Daryl Hannah."]]]
supporting_facts: [["William I, Count of Burgundy", 1], ["Alice of Normandy", 2]]
evidences: [["William I, Count of Burgundy", "mother", "Alice of Normandy"], ["Alice of Normandy", "spouse", "Reginald I, Count of Burgundy"]]
answer: Reginald I, Count of Burgundy