===Viscount Beauchamp, first creation ("of
Hache") (1536–1552)=== The Seymour family inherited the
capital manor of Hatch Beauchamp (anciently
Hache) due to the marriage of Roger Seymour () to Cecily Beauchamp (), the aunt and heiress of John IV de Beauchamp, 3rd Baron Beauchamp (1330–1361),
feudal baron of Hatch Beauchamp. •
Edward Seymour, Viscount Beauchamp (created Earl of Hertford in 1537 and Duke of Somerset in 1547; forfeit in 1552) ===Barons Beauchamp, sixth creation ("of
Hache") (1559–1750)=== •
Edward Seymour, 1st Earl of Hertford and Baron Beauchamp (1539–1621) •
Edward Seymour,
styled Lord Beauchamp (1561–1612) •
William Seymour, 2nd Duke of Somerset, 2nd Earl of Hertford and Baron Beauchamp (1588–1660) •
William Seymour, 3rd Duke of Somerset, 3rd Earl of Hertford and Baron Beauchamp (1652–1671) •
John Seymour, 4th Duke of Somerset, 4th Earl of Hertford and Baron Beauchamp (1646–1675) •
Francis Seymour, 5th Duke of Somerset, 5th Earl of Hertford and Baron Beauchamp (1658–1678) •
Charles Seymour, 6th Duke of Somerset, 6th Earl of Hertford and Baron Beauchamp (1662–1748) •
Algernon Seymour, 7th Duke of Somerset, 7th Earl of Hertford and Baron Beauchamp (1684–1750) The Barony became extinct on the 7th Duke's death. ===Viscounts Beauchamp, second creation ("of
Hache") (from 1750)=== •
Francis Seymour-Conway, 1st Earl of Hertford, 1st Viscount Beauchamp (1718–1794) (created Marquess of Hertford in 1793) See
Marquess of Hertford for further Viscounts Beauchamp. ==Lygon family==