Beaumaris Castle, located in the town of the same name on the Isle of Anglesey in Wales, was built as part of Edward I's campaign to conquer the north of Wales after 1282. Plans were probably first made to construct the castle in 1284, but this was delayed due to lack of funds and work only began in 1295 following the Madog ap Llywelyn uprising. A substantial workforce was employed in the initial years under the direction of James of St George.