French composer and harpsichordist. She was active in Paris under the reign of Louis XIV (1638-1715), known as the Sun King. Her birth family, the Jacquet family, produced many excellent instrument makers and performers; Elisabeth's father was an organist and keyboard teacher. Elisabeth garnered attention as a child prodigy from an early age. It is well-known that the renowned music magazine of the time, Mercure Galant, introduced her at the age of 12, stating: "A miracle has appeared in Paris for the past four years. She sings extremely difficult pieces at sight. She accompanies herself and others on the harpsichord with remarkable skill. She is also adept at composition, able to transpose and perform her works in any requested key..." The following year, the same magazine again lauded her as "the miracle of this century" for her performance of the harpsichord part in an opera. Thus, Elisabeth came to the attention of the King and, from around the age of 15, served at the royal court, receiving various education and acting as a favored subject. At 19, she married the organist Marin de La Guerre. Her husband's family was also a distinguished lineage of renowned organists (the prestigious position of organist at Sainte-Chapelle, passed down from Marin's father and brother to Marin, was inherited by members of the Couperin family after Marin's death). Her compositional activities also progressed smoothly. Her Pièces de clavecin, dedicated to the King at the age of 22, received the exceptional privilege of being published by royal decree. Subsequently, with the King's backing, many of her works continued to be published in this manner. She also composed ballets and operas, and is considered the first French woman to write an opera. After overcoming the misfortune of losing her parents, husband, and only son in succession over approximately six years from the age of 33, she further dedicated herself to performance, composition, and publication. The works published around this time were diverse, including violin sonatas, cantatas, comic operas, and arias. It is said that excellent musicians and discerning audiences flocked to hear her performances. Upon her death at 64, a bronze medal bearing her portrait was struck in honor of her achievements. It was inscribed with the words, "She won honor by competing with the greatest musicians," which indicates how important she was considered in French music history.