Lord Montagu Graham British politician (1807–1878) Parents Caroline Graham, Duchess of Montrose James Graham, 3rd Duke of Montrose Children Siblings Emily Foley James Graham, 4th Duke of Montrose Lady Caroline Graham Georgiana Finch-Hatton, Countess of Winchilsea Lucy Herbert, Countess of Powis unknown son Graham Partners Harriet Anne Bateman-Hanbury