Lieutenant-General Hugh Percy 2nd Duke of Northumberland, FRS 1742–1817 Frances Julia Burrell Duchess of Northumberland 1752–1820 | | | | Elizabeth Seymour Duchess of Northumberland, 2nd Baroness Percy 1716–1776 | | | | General Algernon Seymour 7th Duke of Somerset 1684–1750 | | | | Lady Elizabeth Percy Duchess of Somerset 1667–1722 | | | | Josceline (or Joceline) Percy 11th Earl of Northumberland, 5th Baron Percy 1644–1670 | | |
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| | | Peter Burrell MA, MP, FRS 1724–1775 | | | | Peter Burrell MP 1692–1756 | | |
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