Beaumaris shown within Anglesey
|OS grid reference|
|Sovereign state||United Kingdom|
|UK Parliament||Ynys Môn|
|Welsh Assembly||Ynys Môn|
The town itself began in 1295 when Edward I of England started to build Beaumaris Castle. This was one of several castle along the North Wales coast - others include Conwy, Caernarfon and Harlech . Many of the builders of the castle were from France.
The castle was built on a marsh by the village of Llanfaes. The French builders called the marsh beaux marais which means "beautiful marsh". This is how the town got its name. The people who lived village in Llanfaes were removed to a new village in the west of Anglesey to make way for the castle. This village was called Newborough and it still exists today.