LLANDRILLO, a village and a parish in Corwen district, Merioneth. The village stands near the river Dee, in a fine vale, at Milltir-Gerrig pass, under the Berwyn mountains, 5 miles SSW of Corwen r. station; and has a post office under Corwen, and fairs on 25 Feb., 3 May, -July, 28 Aug., and 14 Nov.—The parish comprises the townships of Cilan, Dinam, Faerdref, Garthiaen, Pennant, and Syrior. Acres, 28,200. Real property, £4,578. Pop., 776. Houses, 177. The property is divided among a few. The surface includes much grand scenery of glen and mountain; and the village is a good starting-point for several romantic touring excursions. Slate is quarried. There are a Druidical circle, a cromlech, and some other ancient British antiquities. The living is a vicarage in the diocese of St. Asaph. Value, £329. Patron, the Bishop of St. Asaph. The church is dedicated to St. Trillo, and is ancient but good.

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