Jules Hardouin-Mansart was a prominent French architect of the 17th century, known for his significant contributions to the Baroque style. Born in 1646, he became the chief architect for King Louis XIV and played a crucial role in the design of several important buildings, including the Palace of Versailles. His most notable work includes the grand Hall of Mirrors at Versailles, which exemplifies the opulence of the era. Hardouin-Mansart's innovative use of light and space helped define the architectural landscape of France during his time, leaving a lasting legacy that influenced future generations of architects.