Charlotte Cavendish-Bentinck noblewoman; (died 1862) (1775–1862) Parents William Cavendish-Bentinck, 3rd Duke of Portland Dorothy Bentinck, Duchess of Portland Children Algernon Greville Charles Greville Harriet Catherine Greville Henry William Greville Siblings Lord Charles Bentinck Lord William Bentinck William Bentinck, 4th Duke of Portland Frederick Cavendish-Bentinck Partners Charles Greville