Margaret de Ros Peerage person ID=28370 (1425–1488) Parents Eleanor Beauchamp Thomas de Ros, 8th Baron de Ros Children Margaret Burgh Edward Burgh Elizabeth Burgh Siblings Edmund Beaufort, 4th Duke of Somerset Eleanor Beaufort Mary Beaufort Henry Beaufort, 3rd Duke of Somerset Anne Beaufort Elizabeth Beaufort Thomas de Ros, 9th Baron de Ros Lady Joan Beaufort John Beaufort, Marquess of Dorset Thomas Beaufort Richard Ros Margaret Beaufort, Countess of Stafford Partners William de Botreaux, 3rd Baron Botreaux Thomas Burgh of Gainsborough