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
Duchess of Cambridge Duchess of Cambridge Duchess of Cambridge is the principal courtesy title held by the wife of the Duke of Cambridge. The title is legally gained upon marriage and is forfeited upon divorce. Five of the eight Dukes of Cambridge did not marry, and thus there are only three Duchesses of Cambridge including the current Duchess, Catherine, wife of Prince William, Duke of Cambridge. The three Duchesses of Cambridge (and the dates the individuals held that title) are as follows: In 1847, Sarah Fairbrother married Prince George, Duke of Cambridge, son of Prince Adolphus, Duke of Cambridge, and Princess Augusta of