Builth Wells

Welsh �Llanfair ym Muallt� market town, Powys county, historic county of Brecknockshire (Sir Frycheiniog), Wales, in the upper Wye valley. The Normans made the surrounding district of Buellt a marcher lordship (i.e., part of the political buffer zone between Wales and England) and constructed a fine motte-and-bailey castle at Builth. But the town and castle suffered severely from Welsh attacks, notably