Olivia Bennet, Countess of Tankerville British noble (1830–1922) Parents George Montagu, 6th Duke of Manchester Millicent Sparrow Children Lady Ida Bennet Corisande Bennet Frederick Bennet Charles Bennet, Lord Ossulston George Bennet, 7th Earl of Tankerville Siblings Lord Robert Montagu Lord George Francis Montagu Lord Frederick Montagu William Montagu, 7th Duke of Manchester Lady Sydney Montagu Partners Charles Bennet, 6th Earl of Tankerville