LLANVWROG (LLAN-FWROG), a parish, in the hundred of TALYBOLION, union of ANGLESEY and county of ANGLESEY, NORTH WALES, 4 miles (N W.) from Bildedern; containing 267 inhabitants. This parish is situated on the shore of the Irish Sea, by which it is bounded on the west and south-west; and contains a considerable tract of inclosed and fertile land: the views from the higher grounds over the adjacent country and the Irish Sea are interesting and extensive. The living is a perpetual curacy, annexed to the rectory of Llanvaethlu: the tithes have been commuted for a rent-charge of £275. 3. 1., and there is a glebe of 8a. 2r. 21p., valued at £10 per annum. The church, dedicated to St. Mwrog, is a small ancient edifice, in a very dilapidated condition, containing some curious remains of oak carving; over the north entrance is a mutilated inscription, of which only a few of the letters, rudely formed, are remaining. According to tradition, there was once a chapel in a field called Monwent Mwrog, on the farm of Cevn GUI's, in the parish; but not a vestige of it is now to be seen. There is a place of worship for Calvinistic Methodists, who have also a Sunday school, in which about 120 males and 80 females are taught gratuitously; and the produce of two charitable benefactions, amounting to £1. 2. 6. per annum, is distributed among the poor.