Sibyl Marcia Graham (died 1887) (1857–1887) Parents Lady Jane St. Maur Sir Frederick Graham, 3rd Baronet Children Cynthia Colville Richard Crewe-Milnes Lady Annabel Crewe-Milnes Lady Celia Crewe-Milnes Siblings James Reginald Graham Hilda Graham Hugh Graham Margaret Graham Sir Richard Graham, 4th Bt. Helen Graham Violet Graham, Duchess of Montrose Partners Robert Crewe-Milnes, 1st Marquess of Crewe