Valenca Fortress

Valenca Castle is actually two castles full of fortified corners, watch towers, massive gates and defensive bastions connected by a single bridge, and the old churches and Manueline palaces inside attest to the success of the fortifications against several sieges; Some of them date from the late nineteenth century, and the oldest fortifications in this castle date back to the reign of Dom Afonso III in the thirteenth century, although what you see today was mostly built in the seventeenth century, and its design was inspired by the French military engineer Vauban (Vauban).