Eleanor Percy, Duchess of Buckingham British duchess (1474–1530) Parents Maud Herbert Henry Percy, 4th Earl of Northumberland Children Elizabeth Howard, Duchess of Norfolk Lady Catherine Stafford Lady Mary Stafford Henry Stafford, 1st Baron Stafford Siblings Henry Percy, 5th Earl of Northumberland Alan Percy Anne Percy Sir William Percy Lady Elizabeth Percy Jocelyn Percy Maud Percy Partners Edward Stafford, 3rd Duke of Buckingham