GYFIN, a parish, in the hundred of Llechwedd-Isav, county of CARNARVON, NORTH WALES, a mile (S. by W.) from Aberconway, on the road to Llanrwst, containing 641 inhabitants. This parish, which lies adjacent to, and is intimately connected with, the borough of Aberconway, is distinguished as the scene of a memorable battle, which took place in 880, between the forces of Anarawd, Prince of North Wales, and those of Eadred, Earl of Mercia, in which the latter were defeated with considerable slaughter. It was also here that Llewelyn ab Iorwerth founded the Cistercian abbey, originally called Caer Gyfin abbey, and afterwards Conway abbey, which Edward I. removed to Maenan, when he erected Conway castle, in 1284. The village is pleasantly situated on the small river Gyfin, from which the parish takes its name, and near the confluence of this stream with the river Conway: from its proximity to the port of Aber-Conway, it shares in all the commercial advantages of that town, of which, indeed, it may be considered as forming an integral part. The living is a perpetual curacy, in the archdeaconry and diocese of Bangor, endowed with £400 royal bounty, and £1600 parliamentary grant, and in the patronage of the Dean of Bangor, as impropriator of the tithes. The church, dedicated to St. Benedict, is obscurely situated, and in a state of dilapidation. There is a place of worship for Calvinistic Methodists. The Rev. John Jones, Dean of Bangor, in 1719, bequeathed A.100 for teaching twelve poor children of this parish to read Welsh, the interest of which sum is appropriated to that purpose; and there are some trifling charitable donations and bequests for distribution among the poor. The average annual expenditure for the support of the poor is £254.