Barnwell Castle

Barnwell Castle stands in open fields south of Oundle and north of Barnwell village in Northamptonshire. Built on the site of a former motte and bailey from 1132, the stone castle was erected during the 13th century by the Le Moyne family for the Second Barons’ War. English Heritage lists it as a Grade I building and a Scheduled Ancient Monument, though it remains in private hands. During the English Civil War the owner Sir Edward Montagu used the ruins as a Royal arsenal. After the conflict the Montagu family built Barnwell Manor nearby, adding a grand residence to the estate. The surviving ruins form a strong quadrilateral plan with three tall round towers at the corners and a twin-towered gatehouse on the fourth. The curtain walls reach up to nine metres in height and are more than four metres thick in places. These massive defences show how the castle dominated the surrounding countryside. The gatehouse’s twin towers still stand prominently, marking the main entrance. Inside the enclosure the ground is uneven, with grass and wildflowers growing among broken masonry. Visitors walk around the perimeter of the castle, tracing the line of the walls and looking up at the standing towers. The scale of the ruins gives a clear sense of the fortress’s former strength. From the highest points there are wide views across the flat Northamptonshire landscape. The quiet fields and distant spire of Oundle church frame the scene. The contrast between the crumbling stone and the peaceful rural setting makes the visit memorable.