In 1900, she married Camillo, Marchese Casati Stampa di Soncino (Muggiò, 12 August 1877 – Roma, 18 September 1946). The couple's only child, Cristina Casati Stampa di Soncino, was born the following year. The Casatis maintained separate residences for the duration of their marriage. They were legally separated in 1914. They remained married until Marchese Casati's death in 1946.
In 1925, couple's daughter Cristina (1901–1953), married Francis John Clarence Westenra Plantagenet Hastings, known as Viscount Hastings and later the 16th Earl of Huntingdon; they had one child, Lady Moorea Hastings (4 March 1928 – 21 October 2011), and divorced in 1943. The following year the Viscountess Hastings married Honourable Wogan Philipps; that marriage produced no children.