 St Ellyw's Church is the main feature of the scattered settlement as well as being the source of its name (Llan-Ellyw).Saint Ellyw is said to have been one of the many saintly offspring of Brychan, legendary 5th-century king of Brycheiniog who ruled from nearby Talgarth.The church of St Ellyw dates from the 13th century and, unusually, escaped Victorian modernization so that it preserves many of its medieval features.