Byblos Castle is a castle in Byblos, Lebanon. It was built by the Crusaders in the 12th century from indigenous limestone and the remains of Roman structures. The finished structure was surrounded by a moat. Saladin captured the town and castle in 1188 and dismantled the walls in 1190. Later, the Crusaders recaptured Byblos and rebuilt the ramifications of the castle in 1197.