On the other hand, other historians consider the towers very similar to ones found in Tsepina, Shumen, Perperikon, Vidin, consequently attributing it Bulgarians, who are also known to have controlled the region at certain times during the probable period of construction.
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On one hand, a part of the historians consider that its architecture is reminiscent of the Western manner of planning, and attribute it either to the Genoese, who held several trading posts in the area, or to the Byzantines, who intermittently controlled the region.