Napoleon's tomb (French: tombeau de Napoléon) is the monument erected at Les Invalides in Paris to keep the remains of Napoleon following their repatriation to France from Saint Helena in 1840, or retour des cendres, at the initiative of King Louis Philippe I and his minister Adolphe Thiers. While the tomb's planning started in 1840, it was only completed two decades later and inaugurated by Emperor Napoleon III on 2 April 1861, after its promoter Louis Philippe I, architect Louis Visconti, and main sculptors James Pradier and Pierre-Charles Simart had all died in the meantime.