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 Hesse-Kassel. Under the Royal Marriages Act 1772, Prince George was required to seek the permission of the British monarch (at that time his cousin, Queen Victoria) to marry, but failed to do so as permission to marry an actress with four illegitimate children by three fathers would never have been given. Sarah could not take the style of Princess of Great Britain or of "Her Royal Highness". 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