Zélia Trebelli, born Gloria Caroline Le Bert (1838-1892); French mezzo-soprano.
She made her debut in 1859 in Madrid as Azucena in “Il Trovatore”. In 1860-1861 she performed in Germany, mainly at the “Berliner Hofoper”. In the years thereafter she had engagements in France (Théâtre-Italien) and in England (Drury Lane Theatre and Covent Garden). She made guest appearances at the Stockholm Opera (1875-1880), at the “Hofoper Wien” (1877-1878), at Berlin, Prag, Düsseldorf, Basel, Budapest, Brussels, Amsterdam and Rome. She made also several tours in the U.S.A. She retired from the stage in 1888. For some years she was married to the tenor Alessandro Bettini (1821-1898).