Marie Gand de Coucy was born April 1366 in Coucy Castle, Picardy, France to Enguerrand VII de Coucy (1339-1397) and Isabella of England (1332-1382) and died 1404 France of unspecified causes. She married Henri de Bar (1362-1397) November 1384 JL . William I of England (1027-1087), Henry II of England (1133-1189), Charlemagne (747-814), Hugh Capet (c940-996), Rollo of Normandy (860-932), Alfred the Great (849-899)/s, Charlemagne (747-814)/s, Henry II of England (1133-1189)/s, Hugh Capet (c940-996)/s, William I of England (1027-1087)/s, Rollo of Normandy (860-932)/s.
|Enguerrand of Bar (1387-c1400)|
|Robert de Marle (1390-1415)||1390||25 October 1415 Azincourt, France||Jeanne de Béthune (c1397-1450)|
Marie disputed the wealthy de Coucy inheritance with her stepmother, with Marie claiming the entire inheritance, while Isabelle insisted upon receiving half. Neither of them yielded. The rich barony was described as "having castles of grandeur, with its 150 towns and villages, its famous forests, fine ponds, many good vassals, much great nobility and inestimable revenues". The women lived in mutual hostility, each in a separate castle of the domain, with her own captains and entourage of relatives, both of them endlessly pursuing lawsuits.