Caroline Graham, Duchess of Montrose Caroline Graham, Duchess of Montrose Caroline Graham, Duchess of Montrose (10 August 1770 – 24 March 1847), formerly Lady Caroline Maria Montagu, was the second wife of James Graham, 3rd Duke of Montrose. She was the daughter of George Montagu, 4th Duke of Manchester, and his wife, the former Elizabeth Dashwood. She married Montrose on 24 July 1790, at Kensington Palace. He was fifteen years her senior, and had previously been married to Lady Jemima Elizabeth, daughter of John Ashburnham, 2nd Earl of Ashburnham; their only child had died in infancy. The duke and duchess had six children: The duke,
Prince Adolphus, Duke of Cambridge Duke of Clarence (later William IV), in the hope of securing heirs to the throne—Charlotte had been the only legitimate grandchild of George III, despite the fact that the King had twelve surviving children. After several false starts, the Duke of Clarence settled on Princess Adelaide of Saxe-Meiningen. The way was cleared for the Duke of Cambridge to find a bride for himself. The Duke of Cambridge was married first at Kassel, Hesse on 7 May and then at Buckingham Palace on 1 June 1818 to his second cousin Augusta (25 July 1797 – 6 April 1889), the third daughter