John I, Count of Auxerre Count of Auxerre 1243-1309 (1243–1309) Parents Isabeau de Courtenay-Champignelles John, Count of Chalon Children William of Châlon Siblings Pierre de Bourgogne-Comté, Seigneur de Châtelbelin Etienne de Chalon John I of Chalon-Arlay Hugh III, Count of Burgundy Agnes de Chalon Marguerite de Bourgogne Hugh of Chalon Blanche de Chalon Margaret de Chalon Elisabeth de Chalon Partners Isabelle de Lorraine Adelaide, Countess of Auxerre