Charles Seymour, 6th Duke of Somerset the pride of birth and rank amounted almost to a disease". Charles was the second son of Charles Seymour, 2nd Baron Seymour of Trowbridge (died 1665), of Marlborough Castle in Wiltshire, by his wife Elizabeth Alington (1635–1692). The 2nd baron was (in a junior line) a great-great-grandson of Edward Seymour, 1st Duke of Somerset (executed 1552), brother of Queen Jane Seymour, uncle of King Edward VI and Lord Protector of England. Charles was educated at Harrow School and Trinity College, Cambridge, where his portrait by Nathaniel Dance-Holland survives in the College's collection. In 1675, Charles's elder brother Francis Seymour, 5th
John Seymour, 4th Duke of Somerset John Seymour, 4th Duke of Somerset John Seymour, 4th Duke of Somerset (before 1646 – 29 April 1675) was an English peer and MP. He was the only surviving son of William Seymour, 2nd Duke of Somerset and Lady Frances Devereux and entered Grays Inn in 1666. He succeeded his nephew as the 4th Duke of Somerset in 1671. In 1656 he married Sarah, daughter and co-heiress of Sir Edward Alston and widow of George Grimston. He was elected Member of Parliament for Marlborough in 1661. He died in 1675, childless, and was buried in Salisbury Cathedral. He was succeeded