Cefnllys

Cefnllys Welsh: Cefn-llys
St Michael's Church
OS grid reference	SO08936146
Community	Llandrindod Wells
Principal area	Powys
Preserved county	Powys
Country	Wales
Sovereign state	United Kingdom
Postcode district	15PD
Police	Dyfed-Powys
Fire	Mid and West Wales
Ambulance	Welsh
List of places UK Wales Powys

Cefnllys is an abandoned ghost village, formerly a medieval castle town and borough, near Llandrindod Wells in Radnorshire (now part of Powys), Wales. The settlement was founded during the 13th century by the Mortimer family in order to strengthen their hold on land in the vicinity of the Cefnllys Castle, with which the town was closely associated. The town was probably intended to become the primary settlement of the lordship and cantref of Maelienydd, but was unsuccessful and declined during the 14th century as a result of bubonic plague outbreaks, economic isolation and military insecurity. Despite this, Cefnllys retained its borough status until the 19th century.