HYLTON, a township in the parish of MONK-WEARMOUTH, eastern division of CHESTER ward, county palatine of DURHAM, 3 miles (W.N.W.) from Sunderland, containing 320 inhabitants. The castle, an ancient baronial mansion, has > been greatly modernised, -the centre only possessing any claim to antiquity; a little-to the northward there is a small but elegant private chapel. It was the residence of the ancient family of Hylton from the time of King Athelstan to the year 1746; the building has the arms of the Hyltons and their alliances engraven on it in numerous places.