She was the daughter of Marie Mallarmé (1836-1910) and the poet Stéphane Mallarmé (1842-1898). She married Dr Edmond Bonniot.
Whistler painted Rose et gris: Geneviève Mallarmé y485 on 20 October 1897 at Mallarmé's house at Valvins.
'Mallarmé et les femmes', Musée Stéphane Mallarmé, website.
'Geneviève Bonniot-Mallarmé (1864-1919)', website.