Lady Fanny Hay (died 1853) (d. 1853) Parents Harriet Somerville William Hay, 17th Earl of Erroll Children unknown daughter Cartwright Siblings Somerville Hay Lady Margaret Hay Lady Harriet Hay Lady Dulcibella Hay Samuel Hay William Hay, 18th Earl of Erroll Lady Caroline Hay Lady Isabella Hay James Hay, Lord Hay Lady Emma Hay Partners Stephen Ralph Cartwright