Thomas de Ros, 4th Baron de Ros English noble (1336–1384) Parents Margery of Badlesmere William de Ros, 2nd Baron de Ros Children Thomas de Ros John de Ros, 5th Baron de Ros William de Ros, 6th Baron de Ros Elizabeth de Ros Margaret de Ros Robert de Ros Siblings William de Ros, 3rd Baron de Ros Maud de Ros Alice de Ros Elizabeth de Ros Margaret de Ros Partners Beatrice de Stafford