|Name Natalie Marchioness|
Nathalie-Victurnienne-Delphine de Rochechouart de Mortemart (5 January 1759, Paris – 25 December 1828), later marquise de Rouge, was a sister of Victurnien-Jean-Baptiste de Rochechouart, 9th Duke of Mortemart, and by marriage a member of the House of Rouge, a noble family of Breton origin.
The daughter of Jean-Victor de Rochechouart, duc de Mortemart (1712–71), Victurnienne-Delphine de Rochechouart-Mortemart was married in 1777 to Bonabes-Jean-Catherine-Alexis de Rouge du Plessis-Belliere, 3rd marquis de Rouge (son of Pierre Francois de Rouge and Julie de Coetmen), who died five years later while returning from the West Indies on board the ship of the line Zele, after having fought in the War of American Independence. She had two surviving children with the Marquis de Rouge: Bonabes-Louis-Victurnien-Alexis, marquis de Rouge (1778–1838); and comte Adrien-Gabriel-Victurnien de Rouge (1782–1861).
In 1789 she and her sons left France for Switzerland, and in 1790 they returned and lived in seclusion at the Chateau de Moreuil with her husband's aunt, Innocente-Catherine-Renee, Duchess d'Elbeuf and Princess de Lorraine (1707–94; widow of Emmanuel-Maurice de Lorraine). In 1791, with her children, her mother, and Mme de Pezay (the former Caroline de Murat), the Marquise de Rouge emigrated to Germany, settling first in Heidelberg. The comte d'Espinchal encountered them there, noting in his journal:
In 1796 the Marquise de Rouge moved to Neustadt, near Vienna, where Adrien was admitted to the military academy. She lived in Altona and Munster before returning to Paris in 1798. At first she had to take room and board in a home run by former nuns, as her lands had been expropriated and sold. Her sons joined her in France in 1800. She died on 25 December 1828.