 Together they had one daughter, Marie Luise Caroline de la Motte Fouqué (1803–1864).Fouqué retired from the army with claims of poor health and lived at the Nennhausen estate, publishing his first book in 1804; her first book was published two years later.Several of Briest's novels, her "Letters as to the Purpose and Tendency of Female Culture" (Berlin, 1811), as well as her "Letters on Greek Mythology" (Berlin, 1812), are of note.