William Hay, 17th Earl of Erroll British Earl (1772-1819) (1772–1819) Parents Isabella Carr James Hay, 15th Earl of Erroll Children Lady Caroline Hay Lady Margaret Hay James Hay, Lord Hay Lady Emma Hay Lady Isabella Hay Lady Harriet Hay Lady Fanny Hay Somerville Hay Lady Dulcibella Hay William Hay, 18th Earl of Erroll Samuel Hay Siblings Lady Margaret Hay George Hay, 16th Earl of Erroll Lady Frances Hay Lady Isabella Hay Lady Charlotte Hay Lady Flamina Hay Lady Augusta Hay Lady Jemima Hay James Hay Lady Maria Elizabeth Hay Lady Harriet Hay Lady Mary Hay Partners Jane Bell Alicia Eliot Harriet Somerville