Beaumaris Castle, located in Beaumaris, Anglesey, Wales was built as part of King Edward I's campaign to conquer the north of Wales. It was designed by James of St. George and was begun in 1295, but never completed. Beaumaris has been designated as a World Heritage site.
Beaumaris castle was positioned to face Garth Celyn on the opposite shore of the Menai Strait and was intended, along with Conwy Castle and Caernarfon castle at either end of the Menai Strait, to overshadow the Welsh Royal home and centre of resistance to the English forces.
