The Clun Hundred

lies on the south-western verge of the county, and is bounded by Radnorshire on the west and Montgomery on the north; by the hundred of Purslow on the east and Radnorshire on the south. It is divided into the Clun and Mainstone divisions, the former having in 1841 a population of 2,077, and the latter 1,331 inhabitants. The Clun division contains the parish of Clun, and the Mainstone division the parish of Llanvair-Waterdine, part of Mainstone, and part of Bettwys-y-Crwyn.