| Élisabeth Sophie de Lorraine | |
| Duchess of Richelieu | |
| Birth Date: | 1710 |
| Birth Place: | France |
| Death Date: | 2 August 1740 (aged 29–30) |
| Spouse: | Armand de Vignerot du Plessis |
| Full Name: | Marie Élisabeth Sophie de Lorraine |
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| House: | House of Lorraine |
| Father: | Joseph, Count of Harcourt |
| Mother: | Marie Louise Jeannin de Castille |
| Burial Date: | 20 August 1740 |
| Burial Place: | Chapelle de la Sorbonne, Paris, France |
| Issue: | Antoine, Duke of Richelieu Jeanne Sophie, Countess of Egmont |
Élisabeth Sophie de Lorraine (Marie Élisabeth Sophie; 1710 - 2 August 1740) was a French noblewoman and the second wife of Armand de Vignerot du Plessis, the notoriously lecherous Duke of Richelieu.
She was born in 1710 and was the second daughter of Joseph de Lorraine, Count of Harcourt and his wife Marie Louise Jeannin de Castille. Her older sister Louise Henriette Françoise married Emmanuel Théodose de La Tour d'Auvergne, Duke of Bouillon in 1725.
As a member of the House of Guise in France, she held the status of a princesse étrangère.
Family relations included Emmanuel Maurice de Lorraine-Guse, Duke of Elbeuf; Béatrice Hiéronyme de Lorraine, Abbess of Remiremont; Élisabeth Thérèse de Lorraine, Princess of Epinoy; and Queen Elisabeth of Sardinia.
She was proposed as a bride for Paul Anton, a prince of the Hungarian House of Esterházy, a distinguished soldier and patron of music. The marriage never materialised. In the end, with the help of Voltaire, the Duke of Richelieu was married to Élisabeth Sophie. As she was a princess of the House of Lorraine, Richelieu had to ask permission from the reigning Duke of Lorraine, Francis III Stephen.[1] The Duke of Lorraine accepted and Élisabeth Sophie married Armand de Vignerot du Plessis, duc de Richelieu on 7 April 1734.
Richelieu had been married before to Anne Catherine de Noailles but had had no children. Élisabeth Sophie gave him two children, including the next Duke of Richelieu.
It was said at court that Élisabeth Sophie had a strong mind[2] and a heart capable of great affection and gratitude.[2] She was praised for her virtuous,[2] passionate nature and was a devoted wife to one of the most notorious womanisers of the age.
She died of scurvy in her husband's arms[3] on 2 August 1740, at about thirty years in age and only five months after the birth of her daughter. She was buried at the Chapelle de la Sorbonne on 20 August 1740.[3] In 1780, her husband married again to Jeanne Catherine Josèphe de Lavaulx; there were no children from the marriage.