Harriet Somerville (died 1864) (d. 1864) Parents Mary Digby Hugh Somerville Children Somerville Hay Lady Margaret Hay Lady Fanny Hay Siblings Kenelm Somerville, 17th Lord Somerville Julia Valenza Somerville William Somerville Mark Somerville, 15th Lord Somerville Mary Somerville Hugh Somerville Frances Somerville John Southey Somerville, 15th Lord Somerville Partners William Hay, 17th Earl of Erroll