NEWCASTLE-under-Line, a town in England, in the county of Stafford, on a branch of the Trent, is 15 miles north of Stafford, 33 south south-east of Warrington, and 149 from London: had a castle, now in ruins; and is so called from an older castle, which formerly stood two miles off, at Chesterton-under-Line. It was incorporated by King Henry I. and again by Queen Elizabeth and King Charles II. and is governed by a mayor, two justices, two bailiffs, and 24 common council. The clothing trade flourishes here; but its chief manufactory is hats, here being an incorporated company of felt-makers. A great quantity of stone ware is made near this place.