She made her debut in 1887 (Brussels, part of Gilda). In 1888 she performed with success at Covent Garden the title role in Lucia di Lammermoor. Under the guidance of Gounod, she prepared the roles of Marguerite and Juliet in Romeo and Juliet (1889). She also sang at the Mariinsky Theater (1891, the part of Juliet). Since 1893 at La Scala and the Metropolitan Opera (debut as Lucia).
Among the roles are Mimi, Violetta, Rosina, Aida, Elsa in Lohengrin, Nedda in Pagliacci and others. One of the most outstanding singers of her time. Her career has been long. She left the stage in 1926, giving a farewell concert in Covent Garden. Then she returned to her homeland. Author of memoirs (1925).