Chalon-Arlay was a noble house of the Holy Roman Empire. They were the lords of Arlay in the county of Burgundy and a cadet branch of the ruling house of the county, the House of Ivrea. The founder of the house was John I of Chalon-Arlay, fifth son of John, Count of Chalon. When John III, lord of Arlay, married Mary de Baux, princess of Orange, the House acquired the principality of Orange.
For more details, and a family tree, see below.