Sybil Sassoon

Sybil Rachel Betty Cecile Cholmondeley, Marchioness of Cholmondeley, styled Countess of Rocksavage from 1913 to 1923, was a British socialite, patron of the arts, and Chief Staff Officer in the Women's Royal Naval Service (WRNS) during the Second World War. She belonged to the prominent Sassoon and Rothschild families.