See also:St Beuno's church, Bettws Cedewain Bettws Cedewain (Welsh: Betws Cedewain), also known as Bettws Cedewen, is a small village and community in Powys, Wales. It lies in a sheltered valley on the banks of the Nant Bechan, some 3 miles (5 km) north of Newtown, on the B4389 road. A wooden motte-and-bailey castle appears to have existed there at one time. The site was also possibly previously used by Roman soldiers, and an ancient church was founded there by Saint Beuno in the 6th century. Until 1914, most properties in the village belonged to the Gregynog estate.