Jean I of Chalon-Arlay was a French nobleman. He was the son of Jean, Count of Chalon and Laure de Commercy, a couple who had thirty castles built on the Jurassian part of the county of Burgundy aroun

Beatrice of Navarre, was Duchess of Burgundy, by marriage to Hugh IV, Duke of Burgundy. She was a daughter of Theobald I of Navarre and his third wife Margaret of Bourbon. Her siblings included Theoba