LLANTRISAINT (LLAN-TRI-SANT), a parish, partly in the hundred of MENAI, but chiefly in the hundred of LLYVON, union of ANGLESEY and county of ANGLESEY, NORTH WALES, 4 miles (W.) from Llanerchymedd; containing 904 inhabitants. This parish, which is situated in the western part of the island, and is intersected by the small river Maw, comprehends a tract of about four thousand four hundred and sixty acres of arable and pasture land, nearly the whole inclosed. The surface is gently undulated, rising into eminences of various elevation and aspect; the soil is for the most part poor, consisting chiefly of a hungry clay, fit only for the cultivation of oats. Copper-ore has been found upon Meinir farm; but no 'mites of it have hitherto been opened. The living is a discharged rectory, with the perpetual ouracies of Ceidia, Gwredog, Llanilibio, and Lleth.- oynvarwycld annexed, rated in the king's books at £15; present net income, about £750, with a glebe-home; pion, Bishop of Bangor. The church, dedicated to Arran, Ieuan, and Sanaa, from which. circumstance the parish derives its name, signifying the church of three saints, was originally fouuded in the year 570. The present is a geed modern. edifice of 4:emparatively recent erection,, containing accommodation for about 150 persons, and was thoroughly repaired and . much improved a few years since; it contains a neat plain monument to the memory of Dr. Hugh Williams, founder of the families of Wynnetay, Bodelwyddan, and Penbedw. There is a place of worship for Calvinistic Methodists, by whom a Sunday school of 80 persons is maintained. A small parochial school for poor children was founded in 1822, at an expense of £53, defrayed from the charity fund noticed below, and has an endowment of £8 per annum from the same source, for which 12 children are taught reading, writing, and arithmetic; the instruction of the remainder, amounting in all to 40, is paid for by their parents and the rector. Three poor men from the parish are eligible to the almshouses at Beaumaris, under the will of the founder, David Hughes, who endowed them with the farm called Meinir, here situated, and with various other lands, for the support of the inmates; and the same benefactor, by his will, dated December 30th, 1609, after providing for the school and houses at Beaumaris, directed that any surplus should be distributed among the poor of this parish. He was a native of this place, and having by persevering industry amassed a very ample property, thus charitably appropriated a considerable portion of it for the benefit of the poor. Blanche Wynne, of Chwaen Wenn, in 1733, left £100, the interest to be applied to teaching children, and for distribution among the poor at Easter and Christmas; and in 1720, the Rev. Robert Wynne bequeathed £52, the interest to be spent in a weekly gift of bread, and a similar amount to the poor of Penmynnedd parish. With these sums a farm-house and 50 acres of land, now producing £24 per annum, were purchased, and three-fourths of the rent are expended in this parish in carrying the intentions of the above donors into effect, and the other fourth is appropriated to Penmynnedd. There are besides a few other small charities, namely, a rent-charge of 10s., payable out of Chwaen Isav, the grant of John Williams; and 4s. 6d., arising from the bequests of Richard David, in 1742, and Janet Hughes, in 1764: and two charities of £5 each, by Thomas Hughes, in 1760, and by a person unknown, have been lost through the insolvency of the parties to whom the sums lead been lent.