French architect of the Revolutionary and Napoleonic periods. Trained under Julien David Leroy (1724-1803); he was also a close friend of Claude Nicolas Ledoux. He was appointed Inspecteur général des bâtiments de la République in 1794. In 1807, Napoleon I chose Vignon's uncompromising Neoclassical design for his Temple de la Gloire (after 1813 the Madeleine) in Paris. //