A French soprano born in Saint-Cyr-sur-Loire on August 1, 1927, Denise Dupleix made her career at the Opéra-Comique in Paris. The daughter of opera singers André Louis Dupleix and Eugénie Souève, she grew up in an environment conducive to a musical education, learning music theory from the age of six, before entering the Conservatoire de Tours to study singing. Noticed at a competition where she sang an aria from Donizetti's La Fille du régiment, the seventeen-year-old entered the Conservatoire National Supérieur de Paris, before joining the Opéra-Comique troupe, where she performed the great roles of the operetta repertoire. Although she was very much in evidence at performances at Salle Favart, her coloratura soprano voice was rarely recorded. She did, however, leave her mark with the album Le Pays du sourire, based on Franz Lehár, in which Denise Dupleix is partnered by Alain Vanzo. Her repertoire also includes Lakmé (Léo Delibes), Le Barbier de Séville (Rossini), Les Pêcheurs de perles (Bizet), La Dame blanche (François-Adrien Boieldieu), La Fille de Madame Angot (Charles Lecocq) and L'Enfant et les sortilèges (Ravel). After retiring from the stage in the early 1970s, she turned to teaching, notably at the Paris Opera, where her students included Jean-Philippe Lafont and Agnès Mellon. She also gave master classes in France and abroad. Denise Dupleix died in Paris at the age of 97, on April 28, 2025.