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Pauline Viardot and Marietta Alboni in Act of Les Huguenots Covent Garden NGOp. Pauline Viardot as Valentine left and Marietta Alboni as Urbain in Meyerbeer's Les Huguenots Act scene ix Covent Garden lithograph by John Brandard Scan of Sadie Stanley ed The New Grove Dictionary of Opera London Macmillan ISBN Originally uploaded