Baron Haussmann was a French public official and urban planner of the 19th century, known for his work in transforming Paris during the Second Empire period. He was responsible for the renovation and remodeling of the city, establishing wide avenues, parks, squares, and iconic buildings. His main goal was to improve infrastructure, the sewer system, and traffic circulation in the city. Haussmann is considered a key figure in the development of neoclassical architecture and the creation of modern urban design in Paris.