Elizabeth de Ros (1366-1424) (1366–1424) Parents Beatrice de Stafford Thomas de Ros, 4th Baron de Ros Children Maud Clifford John Clifford, 7th Baron de Clifford Siblings William de Ros, 6th Baron de Ros Thomas de Ros Margaret de Ros Robert de Ros John de Ros, 5th Baron de Ros Partners Thomas de Clifford, 6th Baron de Clifford