François Mansart (1598-1666) was a prominent French architect known for his influential role in the development of the French Baroque style. He is best recognized for his innovative use of the Mansard roof, a design that features a double-pitched roof, allowing for additional living space in attics. His work significantly shaped the architectural landscape of 17th-century France. Mansart's designs often emphasized symmetry and grandeur, reflecting the ideals of the Louis XIV era. He contributed to several important buildings, including the Château de Maisons and the Palace of Versailles. His legacy continues to inspire architects and designers around the world.