Nancy Mitford a satire on Mosley's fascist "Blackshirt" movement. Mitford herself had briefly flirted with this cause, although her enthusiasm was short-lived and she soon became a vociferous opponent of fascism. When the novel was published in 1935 it made little critical impact, while seriously offending members of her own family, particularly her sisters Diana and Unity, both of whom were supporters of Mosley's movement and devotees of the German dictator Adolf Hitler. Diana eventually forgave her, but the rift with Unity, who was outraged by her depiction in the book as the ridiculous "Eugenia Malmains", was never fully healed. By 1936
Diana Álvares Pereira de Melo, 11th Duchess of Cadaval the history of the Portuguese monarchy, which she publishes under the name of Diana de Cadaval. "Dona" Diana's father was married twice, but only the second marriage was a religious ceremony. Diana has two older half-sisters, an older half-brother (born from her father's extramarital relationship) and a younger sister: When the Duke died in 2001, the eldest daughters of both marriages, Rosalinda and Diana, disputed the family heritage. "Dom" Duarte Pio, Duke of Braganza recognized Diana as 11th Duchess of Cadaval (on a non-hereditary basis, as all holders of the Dukedom of Cadaval in the past have obtained royal recognition