Lady Jane Seymour (1637-1679) (1637–1679) Parents Frances Seymour, Duchess of Somerset William Seymour, 2nd Duke of Somerset Children Charles Boyle, 2nd Earl of Burlington Elizabeth Boyle Arabella Boyle Mary Boyle Henry Boyle, 1st Baron Carleton Siblings Henry Seymour, Lord Beauchamp Frances Darcy, Countess of Holderness Lady Mary Seymour Robert Seymour, Lord Beauchamp John Seymour, 4th Duke of Somerset William Seymour, Lord Beauchamp unknown Seymour Partners Charles Boyle, 3rd Viscount Dungarvan