DisgrifiadCaersws is a village and community sitting on the River Severn some four miles west of Newtown, Powys. Caersws has a railway station on the Cambrian Line from Aberystwyth to Shrewsbury. The name Caersws means 'fort of Sws'. The prefix is Welsh 'Caer' meaning fort and Swys Wen was traditionally an ancient Roman queen. The village is the location of two Roman forts of Roman Wales.
Llanwnnog Church in the community of Caersws is a single-chambered structure, variously considered to be of 13th century or 15th century date and restored in 1863. It contains the best example of a 15th century or 16th century rood screen and loft in Montgomeryshire, a medieval font bowl and one 17th century memorial.
M. Lloyd Davies, RCAHMW, 21 January 2009.
