 From 1805 to 1813, it was under French rule, and from 1813 to 1918 it again under the Austrian rule, as was all Croatia.Prozor Fortress was built on isolated rock, detached from the craggy cliff on the end of mountain Svilaja range of hills.The remains of the Prozor Fortress are the ruins of a spacious residential building, a water tank, stone walls and a chapel.