John James Perceval 3rd Earl of Egmont 1738–1822 | | | | Lord Nassau Powlett 1698–1741 Lady Isabella Tufton –1764 | | | | Thomas Tufton 6th Earl of Thanet 1644–1729 Lady Catherine Cavendish 1665–1712 | | | | Henry Cavendish 2nd Duke of Newcastle-upon-Tyne 1630–1691 Frances Pierrepoint 1630–1695 | | | | William Cavendish 1st Duke of Newcastle-upon-Tyne 1593–1676 Elizabeth Basset 1599–1643 | | |
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| | | John Perceval 2nd Earl of Egmont 1711–1770 Lady Catherine Cecil –1752 Catherine Compton 1731–1784 |
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