Louis VII was king of France  in the 12th century.  Napoleon III (Louis-Napoleon) was emperor of the French in the middle of the 19th century and is responsible for rebuilding Paris, including tearing down much of older Paris, expanding its boulevards and requiring buildings along them to be of the same height, building the Paris Opera, refurbishing the four central parks and building four very large parks on the outskirts of the city. As a result of the parks on the outskirts, Paris has a very large percentage of green space. However, this is primarily used by and was intended for the use of Parisians.  What attracts tourists is central Paris, including its old central parks as well as its buildings, museums,  churches, ambience etc, as well as Versailles, not the parks on the outskirts.  Tourists don't much rent car and drive around the outskirts of Paris.