Abergavenny Museum and Castle is housed within the grounds of the 11th-century Norman castle in Monmouthshire, south Wales. The museum occupies a Regency hunting lodge built in 1819 on the castle's Norman motte, presenting the area's medieval and social history through period room recreations including a 19th-century Welsh farmhouse kitchen, saddlery workshop, and historic grocer's shop. The castle itself holds dark historical significance as the site of a 1175 massacre by Norman lord William de Braose, making it a compelling destination for understanding Norman conquest, Welsh resistance, and local heritage. Free admission and adjacent parkland access enhance its value as a cultural and recreational resource.