Question: Who is Adelaide Of Burgundy, Duchess Of Brabant's paternal grandfather?

Context paragraphs:
title: Hugh IV, Duke of Burgundy
paragraph_text: Hugh IV of Burgundy( 9 March 1213 – 27 or 30 October 1272) was Duke of Burgundy between 1218 and 1272. Hugh was the son of Odo III, Duke of Burgundy and Alice de Vergy.
title: Hugh the Black
paragraph_text: Hugh the Black (died 952) was Duke of Burgundy from 923 until his death in 952. He was a Bosonid through his father, who was the younger brother of Boso of Provence. Hugh was the son of Richard of Autun, Duke of Burgundy, and Adelaide of Auxerre. He succeeded his older brother Rudolph as Duke of Burgundy, when Rudolph was elected King of West Francia, as Raoul, in 923. Following Raoul's death in 936, Hugh may have had aspirations to follow his brother onto the throne and refused to recognize Louis IV as king of West Francia. As a result, Louis sent Hugh the Great who captured Auxerre and Sens. The Duchy of Burgundy was divided between Hugh the Great and Hugh the Black. It is unknown whether Hugh married. He probably died without living offspring, as he was succeeded as Duke of Burgundy by Gilbert of Chalon, who held the title of Duke of Burgundy "jure uxoris", his wife Ermengard being the daughter of Richard of Autun, and sister of Hugh.
title: Isabella of Bourbon
paragraph_text: Isabella of Bourbon, Countess of Charolais( 1434 – 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.
title: Florine of Burgundy
paragraph_text: Florine of Burgundy( 1083–1097) 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.
title: Adelaide of Burgundy, Duchess of Brabant
paragraph_text: Adelaide of Burgundy (c. 1233 – 23 October 1273) was a daughter of Hugh IV, Duke of Burgundy by his first wife Yolande of Dreux. Alternatively, she was known as "Alice" or "Aledidis". She was Duchess of Brabant as a result of her marriage to Henry III, Duke of Brabant in 1251 and would later act as regent of the Duchy following the death of her husband a decade later.
title: Rudolph of France
paragraph_text: Rudolph or Rudolf (c. 890 – 14/15 January 936) was the elected King of France from 923 until his death in 936. Prior to his election as king, he was Duke of Burgundy and Count of Troyes from 921. He was the son of Richard, Duke of Burgundy, and Adelaide of Auxerre, and inherited the Duchy of Burgundy from his father. He married Emma of France, daughter of king Robert I of France. He is frequently confused with his uncle Rudolph I of Burgundy. Rudolph was elected king of West Francia in 923 by an assembly of Frankish nobles, to succeed his father-in-law Robert I who was killed at the Battle of Soissons against the deposed king Charles the Simple. He was crowned by Walter, Archbishop of Sens at St. Médard in Soissons on Sunday, 13 July 923. On assuming the crown he passed the Duchy of Burgundy to his younger brother Hugh the Black.
title: Adelaide of Rheinfelden
paragraph_text: Adelaide of Rheinfelden( or Adelaide of Swabia)( 1060s – May 1090), was Queen Consort of Hungary by marriage to King Ladislaus I of Hungary.
title: Agnes of France, Duchess of Burgundy
paragraph_text: Agnes of France( c. 1260 – 19 December 1327) was a Duchess of Burgundy by marriage to Robert II, Duke of Burgundy. She served as regent of Burgundy during the minority of her son in 1306 – 1311.
title: Joan III, Countess of Burgundy
paragraph_text: Joan III of Burgundy( 1/2 May 1308 – 10/15 August 1347), also known as Joan of France was a reigning Countess of Burgundy and Artois in 1330 – 1349, She was also Duchess of Burgundy by marriage to Odo IV, Duke of Burgundy. She was the eldest daughter of King Philip V of France and Countess Joan II of Burgundy.
title: Sibylla of Burgundy, Duchess of Burgundy
paragraph_text: Sybilla of Burgundy( 1065 – 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:

Reasoning steps:
Adelaide of Burgundy father Hugh IV, Duke of Burgundy
Hugh IV, Duke of Burgundy father Odo III, Duke of Burgundy

Answer: spans: Odo III, Duke of Burgundy