ISABELLA OF HAINAUT (II70-1190), queen of France, was the daughter of Baldwin V., count of Hainaut, and Margaret, sister of Philip of Alsace, and was born in II7o at Lille. She was married to Philip Augustus, and brought to him as her dowry the province of Artois. She was crowned at St. Denis on May 29, I 180. As Baldwin V. claimed to be a descendant of Charlemagne, the chroniclers of the time saw in this marriage a union of the Carolingian and Capetian dynasties. In 1184, Philip, waging war
against Flanders, was angered at seeing Baldwin support his enemies, and called a council at Sens for the purpose of repudiat ing his wife. Robert, the king's uncle, successfully interposed. She died in 1190. Her son became Louis VIII. of France.
See Cartellieri, "L'Avenement de Phil. Aug." in Rev. hist. liii. 262 et seq.