Humphrey Stafford, Earl of Stafford English noble (1425-1458) (1425–1458) Parents Anne Neville, Duchess of Buckingham Humphrey Stafford, 1st Duke of Buckingham Children unknown Stafford Henry Stafford, 2nd Duke of Buckingham Siblings Sir Henry Stafford John Stafford, 1st Earl of Wiltshire Lady Joan Stafford Lady Anne Stafford Lady Catherine Stafford Partners Margaret Beaufort, Countess of Stafford