Question: John, was the Count of Auxonne and Chalon-sur-Saône in his own right, was a French nobleman, in contemporary documents, he was sometimes called "Count of Burgundy", in 1251, by which King?

Context paragraphs:
Henri, Count of Harcourt: Henri de Lorraine (20 March 1601 - 25 July 1666, Royaumont Abbey), known as "Cadet la Perle", was a French nobleman.  He was count of Harcourt, count of Armagnac, count of Brionne and viscount of Marsan.  He was the younger son of Charles I, Duke of Elbeuf and his wife Marguerite de Chabot, countess of Charny.

Ladrón Íñiguez: Ladrón Íñiguez (died 1155), also known as Ladrón Navarro, was a leading nobleman of the Kingdom of Navarre during the reign of García Ramírez (1134–50), whose accession he was instrumental in bringing about.  He is regularly titled count ("comes"), the highest rank in the kingdom, after 1135.  He is recorded in contemporary documents with the title "princeps Navarrorum" (prince of the Navarrese).  Between 1124 and his death he was the effective ruler of the Basque country ("Euskadi").

Munio Vélaz: Munio Vélaz or Vigílaz (died before 931) was the count of Álava and probably also of Biscay.  The exact dates of his countship are unknown.  Only one document, dated 18 May 919 in the cartularies of Valpuesta, names Munio as count in Álava.  He ruled between counts Gonzalo Téllez (last seen as count in 913) and Fernando Díaz (first seen in 923).  The counts of Álava are described variously in contemporary documents as ruling "in" Álava, Lantarón or Cerezo.  The next count after Munio described as ruling Álava proper is Álvaro Herraméliz in 929.  They governed the eastern borderlands of the kingdom of León on behalf of the crown.

Renauld I, Count of Nevers: Renauld I (died 29 May 1040) was a French nobleman.  He was the ruling count of Nevers from 1028 until his death at the battle of Seignelay against the Robert I, Duke of Burgundy.

Prince Michel, Count of Évreux: Prince Michel of Orléans, Fils de France, Count of Évreux (Michel Joseph Benoît Marie; born 25 June 1941, Rabat, Morocco) is a French nobleman and part of the claimant family to the French throne.  He is the son of the late Prince Henri, Count of Paris (the Orleanist claimant to the French throne from 1940 until his death) and Princess Isabelle of Orléans-Braganza.  Prince Michel is styled as the Count of Évreux.

John, Count of Chalon: John (1190 – September 30, 1267), called the Old ("l'Antique"), was a French nobleman, the Count of Auxonne and Chalon-sur-Saône in his own right and regent in right of his son, Hugh III, Count of Burgundy.  In contemporary documents, he was sometimes called "Count of Burgundy", as by King William of Germany in 1251.

Gerard, Duke of Lorraine: Gerard (  1030 – April 14, 1070), also known as Gerard the Great, was a Lotharingian nobleman.  He was the count of Metz and Châtenois from 1047 to 1048, when his brother Duke Adalbert resigned them to him upon his becoming the Duke of Upper Lorraine.  On Adalbert's death the next year, Gérard became duke, a position that he held until his death.  In contemporary documents, he is called "Gérard of Alsace" (after his familial homeland), "Gérard of Chatenoy" (after an ancestral castle near Neufchâteau), or "Gérard of Flanders" (after his wife's homeland).

Walter, Count of Rethel: Walter, Count of Rethel (d. 1262 was a French nobleman.  He was a younger son of Count Hugh II of Rethel and his wife, Felicitas of Broyes.  In 1251, he succeeded his brother John as the ruling count of Rethel.  No marriage or children are known.

William II of Holland: William II of Holland (February 1227 – 28 January 1256) was a Count of Holland and Zeeland (1234–56).  He was elected as German anti-king in 1247 and remained king until his death.

John I of Chalon-Arlay: John I of Chalon-Arlay (1258–1315) was a French nobleman.  He was the son of John, Count of Chalon and Laure de Commercy, a couple who had thirty castles built on the Jurassian part of the county of Burgundy around their new seigneurie of Salins, including the Château d'Arlay (upon the death of Otto III in 1248, the elder John had become regent of the county of Burgundy on behalf of his son Hugh III, his daughter-in-law Adelaide, and his grandson Otto).  He was Seigneur of Arlay (1266–1315) and Viscount of Besançon (1295–1315).

Supporting paragraphs: John, Count of Chalon William II of Holland
Answer: William II of Holland