La mort d'Adam et son apothéose is a Biblical opera in 3 acts by composer Jean-François Le Sueur with a French libretto by Nicolas-François Guillard. Le Sueur wrote the opera while working as an instructor at the Conservatoire de Musique in Paris. The opera was initially scheduled to be performed at the Conservatoire but was dropped in favor of Charles Simon Catel's Sémiramis. Upset over this decision, Le Sueur published anonymously a pamphlet entitled Projet d'un plan général de l'instruction musicale en France, in which he harshly criticized the methods of instruction followed at the Conservatoire, his rival Catel, and Catel's patron, the director of the Conservatoire. Le Sueur was subsequently fired from the Conservatoire on September 23, 1802 and the composer lived in a state of poverty for about a year before he became maître de chapelle to the First Consul in Paris in early 1804. Eventually, Le Sueur was able to mount a production of La mort d'Adam. The opera was first performed at the Académie impériale in Paris on March 21, 1809.