family to this end. However, the match fell through, and by mutual choice, in 1881 Frances married Francis Greville, Lord Brooke, the eldest son and heir of George Greville, 4th Earl of Warwick, although her parents did not initially approve. Lord Brooke succeeded to the earldom in 1893, and the family moved to Warwick Castle. Daisy's first child, and probably the only one fathered by her husband, was Leopold Guy (1882–1928), who later became the sixth Earl of Warwick. Marjorie Blanche (1884–1964), born three years after the marriage, was Daisy's second child. Daisy, in a 1923 conversation with Basil Dean, the husband of Mercy, stated that Marjorie was fathered by Lord Charles Beresford. The third, Charles Algernon (1885–1887), died aged 16 months, and may also have been fathered by Charles Beresford. Daisy's fourth child was a son, Maynard (1898–1960), and the fifth, a daughter, Mercy (1904–1968). These were fathered by Joseph Frederick (Joe) Laycock, a millionaire bachelor with whom Daisy was infatuated despite his faithlessness to her. Mercy was fathered by Laycock after he had married Katherine Mary (Kitty), the Marchioness of Downshire, on 14 November 1902, after she had been divorced by Arthur Hill, 6th Marquess of Downshire, citing adultery with Laycock. Personal life Following Daisy's marriage, she became a celebrated hostess and socialite, often hosting or attending lavish parties and gatherings. She and her husband were members of the 'Marlborough House Set', headed by Albert Edward, Prince of Wales (the future Edward VII). Beginning in 1886, as was the unspoken 'code' for aristocrats of her set, she became involved in affairs with several powerful men, most notably the Prince of Wales. Lady Warwick was a favourite of the Prince of Wales and entertained him and his entourage lavishly. As a royal favourite, others would 'prove their worth' by assisting those favourites. Cecil Rhodes made sure that her investments in Tanganyika Concessions were successful. Tanganyika Concessions Ltd was notorious for stock manipulation — during one period of a few days the price went from 2 pence to 13 pounds per share and then crashed. Lady Warwick had a passionate affair with Lord Charles Beresford and was outraged to learn of Lady Charles Beresford's pregnancy during this time. Questioning Lord Charles's loyalty to her, she dispatched a letter to him over the matter. Daisy was unaware that Lord Charles had instructed his wife to open his mail whilst he was