conquered provinces that include Trebinje. Under the name of Tribunia or Travunja it belonged to the Serbian Empire until 1355. Trebinje became a part of the expanded medieval Bosnian state under Tvrtko I in 1373. There is a medieval tower in Gornje Police whose construction is often attributed to Vuk Branković. The old Tvrdoš Monastery dates back to the 15th century. In 1482, together with the rest of Herzegovina (see: Herzog Stjepan Vukčić Kosača), the town was captured by the Ottoman Empire. The Old Town-Kastel was built by the Ottomans on the location of the medieval fortress of Ban Vir, on the western bank of the Trebišnjica River. The city walls, the Old Town square, and two mosques were built in the beginning of the 18th century by the Resulbegović family. The 16th-century Arslanagić bridge (or Perovica bridge) was originally built at the village of Arslanagić, north of the town, by Mehmed-Paša Sokolović, and was run by Arslanagić family for centuries. The Arslanagić Bridge is one of the most attractive Ottoman-era bridges in Bosnia and Herzegovina. It has two large and two small semicircular arches. Among noble families in the Trebinje region mentioned in Ragusan documents were Ljubibratić, Starčić, Popović, Krasomirić, Preljubović, Poznanović, Dragančić, Kobiljačić, Paštrović, Zemljić and Stanjević. Ottoman era The burning of Saint Sava's remains after the Banat Uprising provoked the Serbs in other regions to revolt against the Ottomans. Grdan, the vojvoda of Nikšić, organized revolt with Serbian Patriarch Jovan Kantul. From 1596, the center of anti-Ottoman activity in Herzegovina was the Tvrdoš Monastery in Trebinje, where Metropolitan Visarion was seated. In 1596, the uprising broke out in Bjelopavlići, then spread to Drobnjaci, Nikšić, Piva and Gacko (see Serb Uprising of 1596–97). The rebels were defeated at the field of Gacko. It ultimately failed due to lack of foreign support. The hajduks in Herzegovina had in March 1655 carried out one of their greatest operations, raiding Trebinje, taking many slaves and carrying with them out much loot. On 26 November 1716, Austrian general Nastić with 400 soldiers and 500 hajduks attacked Trebinje, but did not take it over. A combined Austro-Venetian-Hajduk force of 7,000 stood before the Trebinje walls, defended by 1,000 Ottomans. The Ottomans were busy near Belgrade and with hajduk attacks towards Mostar, and were thus unable to reinforce Trebinje. The conquest of Trebinje and Popovo field were given up to fight in Montenegro. The