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Hugh of Chalon (French: Hugues de Chalon; c. 975 – 4 November 1039) was the Count of Chalon and Bishop of Auxerre.^[1]

Hugh was the only son of Lambert of Chalon and his wife Adela (Adelais, Adelaide),^[2] and was made a canon of the Cathédrale Saint-Nazaire in Autun.

Upon the death of his father in 978, Hugh became Count of Chalon.^[2] Hugh's sister or rather half-sister Gerberga was married to Henry I, Duke of Burgundy. In 999, at the request of Duke Henry, Hugh was named Bishop of Auxerre.

The Benedictine house at Paray-le-Monial had been founded in 973 by Hugh's parents. By 999 it was in need of reform, and Count Hugh gave it to Cluny as a priory.

The large crypt of the Cathédrale Saint-Étienne d'Auxerre was built between 1023 and 1030,^[3] when he rebuilt the earlier Romanesque structure. The crypt was immense, with three naves and six traverses. It also featured a new architectural element, a disambulatory, a passage which permitted pilgrims to circulate and visit the tombs in the crypt without disturbing the religious services attended by the clergy.^[4]

Some time between 1023 and 1036, the bishop made a pilgrimage to Jerusalem.^[5]

His successor was his sororal nephew, Count Theobald of Chalon, son of Hugh's sister Matilda (French: Mathilde).^[6]

• Bouchard, Constance Brittain (1987). Sword, Miter, and Cloister: Nobility and the Church in Burgundy, 980-1198. Cornell University Press.