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Marie I de Coucy | |
|---|---|
| suo jure Dame de Coucy and d'Oisy suo jure Countess of Soissons | |
 | |
| Born | April 1366 Coucy Castle, Picardy, France |
| Died | After 3 March 1405 France |
| Noble family | Coucy |
| Spouse(s) | Henry of Bar, Marquis de Pont-à-Mousson |
| Issue | Enguerrand of Bar Robert of Bar Elizabeth of Bar |
| Father | Enguerrand VII de Coucy |
| Mother | Isabella of England |
Marie I de Coucy (April 1366 – after 3 March 1405) was Dame de Coucy and d'Oisy, and Countess of Soissons from 1397. She succeeded suo jure to the title of Countess of Soissons upon the death of her father, Enguerrand VII de Coucy, on 18 February 1397. In addition to her titles, she also possessed numerous estates in northeastern France. She was the wife of Henry of Bar, and the granddaughter of King Edward III of England and Philippa of Hainault.