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.Élisabeth-Claude Jacquet de La Guerre (née Élisabeth Jacquet) was born on March 17, 1665, into a family of musicians and master instrument-makers in the parish of Saint-Louis-en-l'Île, Paris. She came from a rich family of masons, musicians, composers, and instrument makers. Her grandfather, Jehan Jacquet, and her father, Claude Jacquet, were harpsichord makers. Rather than just teaching his sons, Claude Jacquet taught both his sons and daughters how to survive and thrive in the world. This upbringing, support from her father, and her family’s rich history of musicianship was a major stepping stone for her musical career. She received her initial musical education from her father. At the age of five, Louis XIV took notice of her when she performed, evidently as a child prodigy, at his palace of Versailles. This eventually led to her becoming a musician in the court of Louis XIV, the Sun King. She wrote most of her works for her king, which was common. 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. 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.