PENTRAETH (PEN-TRAETH), a parish, in the hundred of TYNDAETHWY, union of ANGLESEY and county of ANGLESEY, NORTH WALES, 5 miles (N. W.) from Beaumaris; containing 985 inhabitants. The name of this place, signifying "the head or point of the sands," is derived from its situation at the head of a small bay of the Irish Sea, called Traeth C6ch, or " the Red Sands," and sometimes Red Wharf bay. The parish comprises a considerable tract of arable and grazing land, which is inclosed and cultivated, and a large portion of common, affording tolerable pasturage for sheep and young cattle. Several of the inhabitants are employed in the quarries of marble and limestone that are worked here, and as seamen on board the vessels engaged in conveying the produce of these quarries to its destination; there is also a small fulling-mill in the village, affording occupation to a few persons. The whole of the western side of the Traeth C6ch, which is the place for shipping the marble and limestone found on this part of the island, is within the parish; and the sands on the shore of the bay, which are dry at low water, are so intermixed with sea-shells, as to form a substitute for lime, and to be used as manure for many miles round, even constituting a considerable article of export to the neighbouring coasts. The village, which is very neat and of prepossessing appearance, is pleasantly situated in a narrow sheltered vale, on the turnpike-road from Beaumaris to Llanerchymedd. Plfis Gwyn, a seat here, is a spacious and handsome mansion, surrounded with thriving woods and plantations, and containing a valuable library, in which are ninety-one volumes of manuscripts, chiefly in the Welsh language, and which, during the life of the predecessor of the present occupier, was open to the literary portion of the community. Fairs are held on May 5th, June 24th, and September 20th. The living forms part of the great rectory of Llanddyvnan, held in commendam since the year 1701 by the Bishops of Bangor, who appoint a curate to serve both churches: the tithes have been commuted for a rent-charge of £290. 11. 3.; and there is a glebe of about one and a half acre, valued at £1. 10. per annum. The church, dedicated to St. Mary, is a small neat edifice, put into a complete state of repair in 1821; it contains some good monuments to the memory of deceased members of the families of Pitts Gwyn and Trevry, and is one of the only two churches in the island noticed by the learned Grose, in his Antiquities of Great Bntain. There are places of worship for Calvinistic and Wesleyan Methodists. A day school containing 12 boys is endowed with £4 per annum, arising from a bequest of £100 by Dr. John Jones, Dean of Bangor, in 1719; the master, who has the privilege of taking boarders, has a house rent-free to reside in; the school was erected by subscription about 35 years since, on ground given by the proprietor of Phis Gwyn, a short distance from the village of Pentraeth. In two other day schools about 50 children are instructed at the expense of their parents; and there are five Sunday schools, appertaining to various denominations of dissenters, in which about 210 males and the like number of females are gratuitously taught to read the Bible in their native tongue. Anne Williams left £50, the interest of which, £2. 10., is paid to thepoor the owner of Plfis &op! on Good Friday and St. Thomas's-day. In 1715, Rowland Jones left a messuage and land called Gors las, containing about 51 acres, for the use of the poor of this parish, and of that of Llansadwrn, to which half an acre was added on the inclosure of the common of Mynydd Llwydiarth, about 20 years since; the whole now paying a rent of £4. 10. per annum, a moiety of which is distributed on St. Thomas's-day; and under the same inclosure act six acres were assigned for fuel to the poor, which have been allotted to indigent families, who are allowed to possess the portions during their lives. Other sums for the relief of deserving objects are, 18s. charged by a mortgage deed upon landsin the parish, and commonly termed the poor's money; and 15s. divided among three widows of the parishes of Pentraetb, Llanddona, and Llandegvan, and payable by the proprietor of Pliis Gwyn; and poor men from the parish are entitled to share in the advantages of a residence in the almshouse at Penmynedd. Towards the repairs of the church there is a rent-charge of 20s. upon a farm of 20 acres named Trn-y-Lon; and two payments of 8d. and 4d. are received out of small parcels of land called glebe-lands. A charity of £4. 10. has been lost by the insolvency of the parties who had been entrusted with the money. Dr. Jones, Dean of Bangor, who bequeathed many extensive benefactions to various places, principally for educating children, was born at Phis GwSio, the parish; he left his valuable library to the Cathedral Church of Bangor.