Lady Cynthia Mary Evelyn Asquith (1887 – 31 March 1960) was an English writer, now known for her ghost storeys and diaries. She also wrote novels and edited a number of anthologies, as well as writing for children and on the British Royal family.Her father was Hugo Richard Charteris, 11th Earl of Wemyss (1857–1937) and her mother Mary Constance Wyndham (see The Souls). She married Herbert Asquith in 1910.