Regarding the Issue About the Periodization of Fortress Constructions in Trapezitsa

Fortress construction of the Trapezitsa Hill with some stipulations can be divided into four periods. The first, which marks the beginning of the fortification of the hill, is synchronous with the construction of the North Tower and the strengthening of a particular area. The second period is characterized by the implementation of the overall concept of the fortification fortress. The third is related to the construction of transverse walls to protect the neighborhood, while the fourth period can be characterized by a fortress wall repairs assigned shortly before the conquest of the city in the late XIV century