Vem gifte sig med Henry IV, Count of Bar?

Henry IV of Bar (abt 1315–1344) was count of Bar from 1336 to 1344. His aunt, Joan of Bar, Countess of Surrey, governed Bar in his name during his minority. He was the son of Edward I of Bar and his wife Marie of Burgundy. He married Yolande of Dampierre (died 1395), a granddaughter of Robert III, Count of Flanders.

Henry and Yolande had two sons:

• Edward II of Bar, became count on the death of his father
• Robert I of Bar, became count on the death of his brother

Yolande de Flandre, dite aussi Yolande de Dampierre, Yolande de Cassel ou encore Yolande de Bar (° 15 septembre 1326 au château d'Alluyes † 12 décembre 1395 au château de la Motte-aux-Bois à Morbecque dans la forêt de Nieppe), fille de Robert de Cassel, seigneur de Marle et de Cassel, est une femme de pouvoir active au XIV^e siècle dans le Nord et l'Est du royaume de France.