PENMON, a parish in the district of Bangor and county of Anglesey; on the coast, opposite Puffin island, 3 miles N N E of Beaumaris, and 8½ N E by N of Llanfair r. station. Post-town, Beaumaris. Acres, 7, 180; of which 6, 128 are water. Real property, £942. Pop., 240. Houses, 53. The property is divided among a few. The land is a peninsula at the N entrance of Menai Strait; and terminates in a headland, which is Penmon Proper, or "the head of Mona." A religiousestablishment was founded here, in the 6th century, by Einion Frenhin; was converted into a Benedictine priory, in 1220, by Llewelyn ab Jorwerth; and is now represented by a farmhouse, which was the prior's residence, and by the parish church, which was its church. Mill-stone, good limestone, and marble are found. The living is a p. curacy, annexed to the p. curacy of Llanvaes, in the diocese of Bangor. The church is cruciform, and mainly Norman; and was restored in 1854. A peculiar and very graceful Norman cross is on a neighbouring hill. Charities, £5.

(John Marius Wilson, Imperial Gazetteer of England and Wales (1870-72))