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
Catherine Graham, Duchess of Montrose married the duke, then Marquess of Graham, on 31 January 1970.. She immediately became Marchioness of Graham, and in 1992, when her husband inherited his father's title, she became Duchess of Montrose. They have three children: Following their marriage, Lady Montrose and her husband moved permanently to Scotland, where they lived at Auchmar House near Loch Lomond. After the establishment of the Preshal Trust, a charity based in Govan, the duchess became one of its leading supporters. The duchess died, aged 79, at Forth Valley Royal Hospital in Larbert, Scotland. Catherine Graham, Duchess of Montrose Catherine Graham, Duchess of Montrose