Frances Seymour, Duchess of Somerset numerous descendants include Queen Elizabeth The Queen Mother (and therefore The Queen and all of her blood descendants), Diana, Princess of Wales, and Sarah, Duchess of York. Frances Seymour, Duchess of Somerset Frances Seymour, Duchess of Somerset ("née" Devereux; 30 September 1599 – 24 April 1674), was an English noblewoman who lived during the reigns of Elizabeth I, James I, Charles I and Charles II. Her father was Robert Devereux, 2nd Earl of Essex, Elizabeth I's favourite who was executed for treason in 1601. She was the second wife of William Seymour, 2nd Duke of Somerset, and the mother of
Sarah Churchill, Duchess of Marlborough she was more capable of business than any man. Although she never came to like Blenheim Palace – describing it as "that great heap of stones" – she became more enthusiastic about its construction and wrote to the Duke of Somerset about the new waterworks: "I believe it will be beautiful. The Canal and Bason (which is already don[e]) look very fine. There is to be a lake & a cascade ... which I think will bee a great addition to the place". The Duchess of Marlborough fought against anything she thought was undue extravagance. She wrote to the Duke