Élisabeth Jacquet de La Guerre (full name Élisabeth-Claude Jacquet de la Guerre; born Élisabeth Jacquet, 17 March 1665, Paris – 27 June 1729, Paris) was a French musician, harpsichordist and composer.
Elisabeth-Claude Jacquet de La Guerre (née Elisabeth Jacquet) was born into a family of musicians and master instrument-makers in the parish of Saint-Louis-en-l'Ile, Paris. A child prodigy, she received her initial musical education from her father and performed on the harpsichord at a young age before King Louis XIV. As a teenager she was accepted into the French court where her education was supervised by the king’s mistress, Françoise-Athénaïs, marquise de Montespan. She stayed with the royal court until it moved to Versailles and in 1684 she married the organist Marin de La Guerre, son of the late organist at the Sainte-Chapelle, Michel de La Guerre. After her marriage she taught, composed, and gave concerts at home and throughout Paris, to great acclaim.
Jacquet de La Guerre was one of the few well-known female composers of her time, and unlike many of her contemporaries, she composed in a wide variety of forms. Her talent and achievements were acknowledged by Titon du Tillet, who accorded her a place on his Mount Parnassus when she was only 26 years old, next to Lalande and Marais and directly below Lully. A quote from Titon du Tillet describes her
"marvellous facility for playing preludes and fantasies off the cuff. Sometimes she improvises one or another for a whole half hour with tunes and harmonies of great variety and in quite the best possible taste, quite charming her listeners." (Le Parnasse Français, 1732)
Her first published work was her Premier livre de pièces de clavessin which includes unmeasured preludes and was printed in 1687. It was one of the few collections of harpsichord pieces printed in France in the 17th Century, along with those of Chambonnières, Lebègue and d'Anglebert. During the 1690s she composed a ballet, Les Jeux à l'honneur de la victoire (c. 1691), which has subsequently been lost. On 15 March 1694, the production of her opera Céphale et Procris at the Académie Royale de Musique was the first of an opera written by a woman in France. The five-act tragédie lyrique was set to a libretto by Duché de Vancy. Like her contemporaries, she also experimented with Italian genres: principally the sonata and the cantata. In 1695 she composed a set of trio sonatas which, with those of Marc-Antoine Charpentier, François Couperin, Jean-Féry Rebel and Sébastien de Brossard, are among the earliest French examples of the sonata.