Jessica Mitford ultimately became close friends of Adolf Hitler. Diana even married the British Union of Fascists' Leader, Sir Oswald Mosley. Upon the outbreak of war between Great Britain and Nazi Germany, Unity tried to commit suicide in Munich and Diana and her husband were interned without trial for the duration of the war. Jessica later described her father as "one of nature's fascists", Jessica (always known as Decca) renounced her privileged background at an early age and became an adherent of Stalinism. She was known as the "red sheep" of the family. At the age of 19, Mitford met her second
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