Chantal was the daughter of Joseph-Pierre de Chevron-Villette, member of a French comital family, and his wife, Marie de Colbert. Chantal married Prince Ferdinand, only son of Prince Ranieri, Duke of Castro and his wife Countess Maria Carolina Zamoyska, on 23 July 1949 in Giez.
Titles and styles 10 January 1925 – 23 July 1949: Countess Chantal de Chevron-Villette 23 July 1949 – 13 January 1973: Her Royal Highness Princess Chantal of Bourbon-Two Sicilies 13 January 1973 – 24 May 2005: Her Royal Highness Princess Chantal, The Duchess of Castro, Princess of Two Sicilies Honours.
