Millicent married George Montagu, 6th. Duke of Manchester on 8 Oct 1822 in St. James's, Piccadilly, Middlesex, England. George (son of William Montagu, 5th. Duke of Manchester and Lady Susan Gordon) was born on 9 Jul 1799 in Kimbolton Castle, Kimbolton, Huntingdonshire, England; died on 18 Aug 1855 in Tunbridge Wells, Kent, England; was buried in St. Andrew's, Kimbolton, Huntingdonshire, England. [Group Sheet]

1. William Drogo Montagu, 7th. Duke of Manchester, K.P. was born on 15 Oct 1823 in Kimbolton Castle, Kimbolton, Huntingdonshire, England; died on 21 Mar 1890 in Hotel Royal, Naples, Italy; was buried in St. Andrew's, Kimbolton, Huntingdonshire, England.