French architect of Italian ancestry. He trained under Percier, and designed some Parisian fountains in a robust Renaissance style, including the Fontaines Gaillon (1824–8), Louvois (1835–9), Molière (1841–8), Quatre Evèques (1842–4), and Saint-Sulpice (1845–8). He built several large houses, including the Hôtel Pontalba (1828). He is best known for two works: the New Louvre, Paris (begun 1852 but redesigned and completed by H. -M. Lefuel after Visconti's death); and the serene, magnificent, yet dramatic tomb of Emperor Napoleon I (1769–1821, reigned 1804–14 and 1815) under the Dôme of the Invalides (1841–53), one of the finest Neo-Classical creations in Paris. He designed a number of handsome tombs in Père-Lachaise Cemetery, Paris, notably the elevated sarcophagus of the Duc Decrès (1761–1821), Vice-Admiral of France.
Aulanier (1953);Hamon & MacCallum (eds.) (1991);Lassalle (1846)