Lady Diana Manners (August 29, 1892 – June 16, 1986), later Lady Diana Cooper and then Diana, Viscountess Norwich, was the youngest daughter of Henry John Brinsley Manners, the 8th Duke of Rutland and his wife, Violet Lindsay, Duchess of Rutland, but was widely supposed to be the illegitimate daughter of Henry Cust. In her prime, she had the widespread reputation as the most beautiful young woman in England, and countless profiles, photographs and articles in newspapers and magazines made her very much the "Princess Diana" of her era. Her niece was Lady Rose McLaren and her nephew (Rose's brother), the 7th Marquess of Anglesey.
She became active in The Coterie, an influential group of young English aristocrats and intellectuals of the 1910s whose influence and numbers were cut short by the First World War. Lady Diana was the most famous of the group, but it included Raymond Asquith (son of the Prime Minister), Patrick Shaw-Stewart, Edward Horner, Sir Denis Anson and Duff Cooper. Following the deaths of Asquith, Horner, Shaw-Stewart in the war and the death of Anson by drowning in 1914, Lady Diana was allowed to marry Duff Cooper in June 1919. He had a reputation for fast living that her prominent society parents frowned upon: they had hoped for a marriage to the Prince of Wales.
After a short-lived editorship of the magazine Femina, she wrote a column in the Beaverbrook newspapers before turning to the stage, playing the Madonna in the revival of The Miracle (directed by Max Reinhardt). The play achieved outstanding international success, and she toured for two years with the cast. Lady Diana subsequently starred in several silent films, including the first British colour films.
In 1924, Duff Cooper gained election to Parliament, and in 1929 they had their only child, John Julius Norwich, now a well-known writer and broadcaster. In the 1930s, she continued as a society celebrity and became celebrated in France as the centerpoint of immediate postwar French literary culture when her husband served as Ambassador to France. Following his retirement in 1947, they continued to live in France at Chantilly, until Duff Cooper's death in 1954.
Lady Diana sharply reduced her activities in the late 1950s but produced an acclaimed three-volume autobiography including the classic first volume The Rainbow Comes and Goes, covering the golden Edwardian period. Philip Ziegler wrote a biography of her, and Evelyn Waugh and others presented fictionalized accounts in several books. She died in 1986 at the age of 93.
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