William Seymour 3rd Duke of Somerset (1660-1671) 1654–1671 | | |
| | Mary Capell Duchess of Beaufort 1630–1715 Henry Seymour Marquis of Hertford, Baron Beauchamp of Hache 1626–1654 | | | | Sir William Seymour 1588–1660 Frances Devereux Duchess of Somerset 1599–1674 | | | | Edward Seymour Viscount Beauchamp 1561–1612 | | | | | | | | Edward Seymour 1st Duke of Somerset, Lord Protector of England 1500–1552 | | |
| | | Henry Grey Duke of Suffolk 1517–1554 Frances Brandon 1517–1559 | | |
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