Compared to well preserved castles like Cardiff and Warwick, Long Buckby castle in Northamptonshire these days has little surviving features (on the surface anyway) apart from a mound. The castle was possibly built in the mid twelfth century during the reign of Henry II by the de Quincy family who held Long Buckby at the time.
The castle had a ring motte with a bailey to the West and a larger bailey to the East. Excavations were made in the eighteenth and twentieth centuries when the foundations of the former wall and a ditch around the edge of the baileys were discovered.