Violet Yolande Leonard (died 1966) (1886–1966) Parents Charles Leonard Catherine Le Sueur Children Meriel Catherine Lyttelton Viola Grosvenor, Duchess of Westminster Charles Lyttelton, 10th Viscount Cobham Lavinia Mary Yolande Lyttelton Audrey Lavinia Lyttelton Partners John Lyttelton, 9th Viscount Cobham