CNWCLAS, a borough, partly in the parish of BEGUILDY, but chiefly in the parish of HEYOP, of which latter it constitutes a division, in the hundred of KNIGHTON, county of RADNOR, SOUTH WALES, 21 miles (N. w. by W.) from Knighton. The population is returned with the respective parishes. This place is pleasantly situated near the right bank of the Teme, which here separates Radnorshire from Shropshire, and had formerly a castle, originally built by Ralph Mortimer, about the year 1242, on the summit of a conical artificial mound. The village consists of about a dozen cottages, situated not very close to each other: the manor belongs to the crown. There is a considerable extent of pasture land in the vicinity, especially near the river Teme, the cattle fed on which are principally taken to the market at Knighton, and to Bishop's Castle in Shropshire. The borough is under the superintendence of a bailiff and burgesses, the latter of whom are made by a presentation of a jury of burgesses, selected by the steward of the manor. Jointly with Kevenlleece, Knighton, Rhaiadr, and (by the late act for amending the representation of the people) Presteign, it contributes, with Radnor, to return a representative to parliament: the right of voting was formerly vested in the burgesses at large, many of whom are resident within seven miles of the borough, but is now, by the late act, vested in the resident burgesses only, if duly qualified according to the provisions of the act, and in every male person of full age occupying, either as owner or as tenant under the same landlord, a house or other premises of the annual value of not less than ten pounds, provided he be capable of registering as the act directs: the number of tenements valued at ten pounds a year and upwards, within the limits of the borough, which were not altered by the late boundary act, is seventeen. The court-house, where the burgesses are created, is situated in that part of the borough which is in the parish of Beguildy. The Rev. Vavasour Powell, who distinguished himself in the civil and religious disputes of the seventeenth century, more particularly in connexion with the Welsh non- conformists, was a native of this borough.