Jeanne Sophie de Vignerot du Plessis | |
|---|---|
| Countess of Egmont | |
 The Countess by Roslin. | |
| Full name | Jeanne Louise Armande Élisabeth Sophie de Vignerot du Plessis |
| Born | 1 March 1740 Montpellier, France |
| Died | 14 October 1773 |
| Buried | Braine, Aisne, France |
| Spouse(s) | Casimir Pignatelli, Count of Egmont (1755) |
| Father | Louis François Armand de Vignerot du Plessis, 3rd Duke of Richelieu |
| Mother | Princess Élisabeth Sophie of Lorraine |
Jeanne Sophie de Vignerot du Plessis (Jeanne Louise Armande Élisabeth Sophie ; 1740 – 14 October 1773) known as Septimanie d'Egmont was a French salonist.