 Complete the following phrase:  Hay Castle  is a medieval fortification and 17th-century mansion house in the small town of Hay-on-Wye in Powys, Wales. Originally constructed as part of the Norman invasion of Wales, the castle was designed as a ringwork overlooking the town in either the late-11th or early-12th centuries. It was rebuilt in stone around 1200 by the de Braose family and then had a turbulent history, being attacked and burnt several times during the 