Ferdinand Cavendish-Bentinck, 8th Duke of Portland British noble (1889-1980) (1889–1980) Parents Frederick Cavendish-Bentinck Ruth Cavendish Bentinck Children Siblings Lady Barbara Cavendish-Bentinck Victor Cavendish-Bentinck, 9th Duke of Portland George Augustus Frederick Cavendish-Bentinck Lucy Joan Cavendish-Bentinck Partners Gwyneth Ethel Edward Wentworth Frances Hope Johnstone