Llywelyn ap Gruffudd was the Prince of Wales when he launched unsuccessful insurrections against Edward I of England. After he was killed at the Battle of Orewin Bridge in 1282, the king commissioned walls around Conwy to protect it from further Welsh rebellions. The citadel was finished in 1287. It was .81 mile long and had 21 towers plus three gatehouses. Fortunately, most of this defensive network remains intact. The majority of Conwy is still located within this 25 acre, medieval triangle.