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
Edward Seymour, 1st Duke of Somerset had Somerset arrested and brought the king to Richmond. Edward summarised the charges against Somerset in his "Chronicle": "ambition, vainglory, entering into rash wars in mine youth, negligent looking on Newhaven, enriching himself of my treasure, following his own opinion, and doing all by his own authority, etc." In February 1550, John Dudley, Earl of Warwick, emerged as the leader of the Council and, in effect, as Somerset's successor. Although Somerset was released from the Tower and restored to the Council in early 1550, he was executed for felony in January 1552 after scheming to overthrow Dudley's regime. Edward noted