The first document in which Castelvecchio is mentioned with such name dates from 1179; instead, in a Charter of Emperor Federico I dated 23rd March 1164 it is called Castello di Sala, from the name of the village below.
Looking at a map drawn in 1558 by Francesco Porta, a notary with a remarkable talent for drawing and rendering the relative positions of places, we can see that at the time the castle had already been abandoned: the area inside the walls, indeed, was a vineyard and that outside simply a field.
On the map, the guardhouse midway along the steep path is referred to as "porta ruinata" (ruined gate), a fact that proves the poor condition of the structure at the time.