Built in medieval times, the old Benedictine monastery of S. Salvador de Castro de Avelãs had great influence in the settlement of the region, appearing in the documentation of the 13rd century as a religious institution that holds great wealth and more powerful Trás-os-Montes.

From the primitive monocal complex it only remains today, of genuine Romanesque architecture, the head of the temple, semi-circular top and the bricklaying