KILYBEBYLL, or CIL-Y-BEBILL, a parish in Neath district, Glamorgan; on the river Tawe, and the Swansea Vale railway, 5 miles N of Neath. Post town. Swansea. Acres, 4, 014. Real property, £5, 243; of which £3, 750 are in mines. Pop. in 1851, 982; in 1861, 1, 346. Houses, 254. The property is divided among a few. The manor belonged formerly to the Herberts and the Turbervilles. Kilybebyll-Place is the chief residence. Much of the land is mountain; and much of that is clothed with wood. Large industry is carried on in the coal trade, and in the Primrose and Waunycoed collieries. A bridge, with one arch of 80 feet in width, spans the Tawe at Pontar-Dawe. The living is a rectory in the diocese of Llandaff. Value, £123. Patron, the Bishop of Llandaff. The church is old but good. There are a dissenting chapel, a national school, and charities £2 10s.

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