In April 1851 Gounod married Anna Zimmerman (1829–1907), daughter of his former piano professor at the Conservatoire. The marriage led to a breach with Viardot; the Zimmermanns refused to have anything to do with her, for reasons that are not clear. Gounod's biographer Steven Huebner refers to rumours about a liaison between the singer and composer, but adds that "the real story remains murky". Gounod was appointed superintendent of instruction in singing to the communal schools in the city of Paris, and from 1852 to 1860 he was director of a prominent choral society, the Orphéon de la Ville de Paris. He also frequently stood in for his elderly and often ill father-in-law, giving music lessons to private pupils. One of them, Georges Bizet, found Gounod's teaching inspiring, praised "his warm and paternal interest" and remained a lifelong admirer.