LLANDYSILIO, a village and a parish in Llanfyllin district, Montgomery. The village stands on Offa's dyke, on the river Vyrnwy, adjacent to the Montgomery canal, the Oswestry and Welshpool railway, and the boundary with Salop, near Llanymynech and Four Crosses r. stations, 6 miles S by W of Oswestry; and is a seat of petty sessions.—The parish includes the townships of Domgay, Haughton, Rhusnant, and Rhantregynwen; and is traversed by a Roman road. Post town, Oswestry. Acres, 3,141. Real property, £5,808. Pop. in 1851, 557; in 1861,689. Houses, 130. The property is subdivided. The living is a rectory in the diocese of St. Asaph. Value, £430. * Patron, the Bishop of St. David's. The church is old.

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