Caernarfon Castle

Caernarfon Castle was constructed at Caernarfon in North Wales by King Edward I of England, following his successful conquest of the principality.

Edward I built many castles in North Wales to help subdue the Welsh following his conquest of the principality in 1277 and the defeat of the Prince of Wales, Llywelyn ap Gruffydd. The other important fortresses of this "iron ring" were Beaumaris, Conwy, and Harlech, but Caernarfon is probably his supreme achievement.