William Henry Cavendish-Bentinck 4. Duke of Portland 1768–1854 | | |
| | Charles William Frederick Cavendish-Bentinck Reverend 1817–1865 Caroline Louisa Burnaby 1832–1918 | | |
| | William Charles Augustus Cavendish-Bentinck Lord Bentinck 1780–1826 Anne Wellesley Lady Abdy 1788–1875 | | |
| | Dorothy Cavendish (Lady) 1750–1794 William Henry Cavendish-Bentinck 3. Duke of Portland 1738–1809 | | |
| | William Cavendish 4. Duke of Devonshire 1720–1764 Charlotte Elizabeth Boyle Baroness Clifford of Londesborough 1731–1754 |
