Alexander Duff British Army officer (1777–1851) Parents Mary Skene Alexander Duff, 3rd Earl Fife Children James Duff, 5th Earl Fife Lady Louisa Duff Lady Catherine Duff George Skene Duff Siblings James Duff, 4th Earl Fife Lady Sarah Duff Lady Jane Duff Mary Duff Lady Anne Duff Partners Anne Stein