The medieval fortress of Trošenj was raised opposite the fortress of Nečven, on the right bank of the Krka River.
It was once under the possession of the great Croatian Šubić family, who ruled over the entire right bank of the Krka River. It was likely erected to guard and control the strategically important bridge over the river.
The Turkish army took over Trošenj in 1522, where they housed their military units, and built a rounded tower. The invasion of the Venetian army to these regions in 1686 ousted the Turks, and the majority of the fortress was destroyed.