Mahaut married Jean I "le Sage" or "l'Antique" DE BOURGOGNE Count Palatine de Bourgogne, son of Cte Étienne III D' AUXONNE and Beatrix DE THIERS Cts de Châlon-sur-Saone, in Jan 1214. (Jean I "le Sage" or "l'Antique" DE BOURGOGNE Count Palatine de Bourgogne was born about 1190 and died on 30 Sep 1267.)