Édouard Marie Ernest Deldevez was a French violinist, conductor at important Parisian musical institutions, composer, and music teacher.

Lalla-Roukh is an opéra comique in two acts composed by Félicien David. The libretto by Michel Carré and Hippolyte Lucas was based on Thomas Moore's 1817 narrative poem Lalla Rookh. It was first performed on 12 May 1862 by the Opéra-Comique at the Salle Favart in Paris. Set in Kashmir and Samarkand, the opera recounts the love story between Nourreddin, the King of Samarkand, and the Mughal princess Lalla-Roukh. Her name means "Tulip-cheeked", a frequent term of endearment in Persian poetry.