Aberlleiniog Castle

About

Hidden within peaceful woodland near Penmon, Aberlleiniog Castle is one of Anglesey’s best-kept historical secrets. Unlike the grand stone fortresses of North Wales, this atmospheric site began life as a Norman motte-and-bailey castle, built between 1080 and 1099 to help secure control of Anglesey after the Norman invasion. Today, its secluded setting and fascinating history make it a rewarding destination for visitors seeking a quieter medieval landmark. The castle occupies a strategic position overlooking the Menai Strait, where visual communication with other fortifications was once vital. In 1094, the site became the scene of a dramatic conflict when Welsh forces led by Gruffudd ap Cynan attacked the Norman stronghold. The battle helped restore Welsh control of the island and remains one of the most significant events in the castle’s history. Visitors approaching the castle will first notice the impressive earthwork mound, or motte, which rises above the surrounding woodland. Climbing to the summit reveals the remains of stone walls and round towers added during later periods of occupation. Although much of the original structure has disappeared, enough survives to give a vivid impression of how the fortress once looked.

Llangoed Wales
Aberlleiniog Castle
Location

Aberlleiniog Castle, tucked away in a quiet woodland nature reserve, is a hidden medieval gem with a rich history. Originally built around 1088 by Hugh d'Avranches, the Norman Earl of Chester, it began as a traditional wooden motte-and-bailey fortress designed to control the Menai Strait. The site saw fierce battles, including a famous Welsh victory where Prince Gruffudd ap Cynan retook the area. The castle is located at Lleiniog Beach Road, Llangoed, Beaumaris, Isle of Anglesey, LL58 8RN, Wales, United Kingdom. It stands hidden within the woodland of the Aberlleiniog Nature Reserve near the village of Llangoed. Because of its position on the eastern tip of Anglesey, visiting Aberlleiniog Castle places you near many notable historic and natural attractions. A short walk down the lane leads to the shingle shores of Lleiniog Beach with views across to the mountains of Eryri. Driving just a few minutes south brings you into Beaumaris, home to the magnificent World Heritage site of Beaumaris Castle, the historic Beaumaris Courthouse, and the Victorian Beaumaris Gaol Museum. Driving east towards the tip of the island opens up visits to the medieval ruins of Penmon Priory, St Seiriol's Holy Well, and the iconic Trwyn Du Lighthouse near Puffin Island.