Unity Mitford summered at the Berghof where she continued to discuss a possible German-British alliance with Hitler, going so far as to supply lists of potential supporters and enemies. At the 1939 Bayreuth Festival, Hitler warned Unity and her sister Diana that war with Britain was inevitable within weeks and they should return home. Diana returned to England, while Unity chose to remain in Germany, though her family sent pleas for her to come home. After Britain's declaration of war on Germany on 3 September 1939, Unity was distraught. Diana Mitford told an interviewer in 1999: "She told me that if there
Diana, Princess of Wales Diana, Princess of Wales Diana, Princess of Wales (born Diana Frances Spencer; 1 July 1961 – 31 August 1997), was a member of the British royal family. She was the first wife of Charles, Prince of Wales, the heir apparent to the British throne, and the mother of Prince William, Duke of Cambridge, and Prince Harry, Duke of Sussex. Diana was born into the Spencer family, a family of British nobility, and she was the youngest daughter of Viscount and Viscountess Althorp. She grew up in Park House, situated on the Sandringham estate, and was educated in England and Switzerland.