LLANGUNIDER, or LLANGYNIDER, a parish and a sub-district in Crickhowell district, Brecon. The parish lies on the river Usk, the Brecon canal, and the Trivel tram railway, 4¼ miles W by N of Crickhowell, and 6 N of Nantyglo r. station; includes a mountain mass called Mynydd-Llangunider; contains a small but beautifully situated village of its own name; contains also the parcel of Vro, and the parcel of Blainey-with-Duffryn; and has a post office under Crickhowell. Acres, 13,908. Real property, £9,244; of which £1,356 are in quarries, and £122 in mines. Pop. in 1851,3,246; in 1861,3,594. Houses, 761. Limestone and coal are worked; and many of the inhabitants are employed in the neighbouring Clydach ironworks. Some scenery, particularly at Buckland-Mill and Duffryn-Crownan, is very fine. The living is a rectory in the diocese of St. David's. Value, £418. * Patron, the Duke of Beaufort. The church is dedicated to St. Cynydr. Charities, £8.—The sub-district is conterminate with the parish.

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