Cavendish, Lady Dorothy Duchess of Portland

Cavendish Side

• Cavendish, William 4th Duke of Devonshire KG PC 1720 - 1764  (44 years)

• Cavendish, William 3rd Duke of Devonshire KG PC 1698 - 1755  (57 years)
• Hoskins, Catherine Duchess of Devonshire Abt 1700 - 1777  (77 years)

• Cavendish, William 2nd Duke of Devonshire KG PC 1672 - 1729  (57 years)
• Russell, Hon Rachel Duchess of Devonshire 1674 - 1725  (51 years)

Boyle Side

• Boyle, Lady Charlotte Elizabeth 6th Baroness Clifford (suo jure) Marchioness of Hartington 1731 - 1754  (23 years)

• Boyle, Richard 3rd Earl of Burlington 4th Earl of Cork KG PC 1694 - 1753  (59 years)
• Savile, Lady Dorothy Countess of Burlington Countess of Cork 1699 - 1758  (59 years)

• Boyle, Charles 2nd Earl of Burlington 3rd Earl of Cork Abt 1670 - 1704  (34 years)
• Noel, Juliana Countess of Burlington Countess of Cork 1672 - 1750  (78 years)