In the 11th century, the Normans built a motte-and-bailey fortification on the coast, opposite a castle in Abergwyngregyn across the Menai Strait, suggesting the castles engaged in coastal communications. Named after a local river, it was a fortified structure built on raised ground, and you can stroll through what remains of the site today. Originally the castle was a wooden structure. Although its history is not fully documented, it faced its share of fighting, with different structures built at different times, and was later replaced by a stone structure during a civil war….
