[{SlideShowNav}] !!!View of Nemours Mansion [{Image src='480us.jpg' width='800' height='659' alt='View of Nemours Mansion' class='image_left'}] [{SET customtitle='View of Nemours Mansion'}] \\ View of Nemours Mansion from beyond the Long Walk and Reflecting Pool. The Mansion was built in 1909-1910 by industrialist Alfred I. duPont and named after the French town from which his family emigrated in 1800.