a town of North Wales in Montgomeryshire, situated on the Severn, 6 miles N.W. of Newton. During the Roman occupation of Great Britain, it was one of the most important stations which that people had in Wales, and is now chiefly interesting as exhibiting many important Roman remains. One of the camps, that may still be traced in the neighbourhood, covers four acres. Coins, urns, vases, &c. are from time to time turned up in the vicinity. Pop. about 500.