The War of Hum was fought in 1326–1329 between the Banate of Bosnia under Stephen II Kotromanić and the Kingdom of Serbia under Stefan Dečanski Nemanjić. Background Branivoje who served King Stefan Milutin Nemanjić (r. 1282–1321) was given the rule of Ston and Pelješac. His family had by 1325 emerged as the strongest in Zahumlje (or Hum). Probably at their highest point they ruled from Cetina river to the town of Kotor. Though nominal vassals of Serbia, the Branivojević family attacked Serbian interests and other local nobles of Hum, who in 1326 turned against Serbia and the Branivojevići. The Hum nobility approached Stjepan Kotromanić II, the ban of Bosnia, who then entered conflict with Serbia. History In 1326, Ban Stephen II attacked Serbia in a military alliance with the Republic of Ragusa and conquered Zahumlje, gaining access to the Adriatic Sea and including a large Serbian Orthodox Christian population and the Serbian Orthodox Church. This changed the balance of religion in Bosnia, as the Bosnian Bogumils had lost its majority in the realm. He also expanded into Završje, including the Fields of Glamoč, Duvanj and Livanj. The province of Zahumlje was ruled by the Serbian noble family of Branivojević who had tricked Stefan Dečanski's vassal Prince, Crep, who was a close friend, so King Stefan had no desire to defend those areas from Ban Stephen's forces. Bosnia controlled the coast from the border with Ragusa across Neretva to Omiš. Ban Stephen II killed two members of the Branivojević, while Branko Branivojević fled to Serbia and sought help from King Stefan and then headed to Ragusa, from where he proceeded to Ston. Ban Stephen pursued Branko, but eventually the Ragusan forces caught the last of the four Branivojević brothers. The Bosnian titles included Lord of the Hum Land ever after. Ban Stephen became the ruler of all the lands from Cetina to Neretva with the exception of Omiš, which was taken by the Hungarians. In 1329, Ban Stephen II of Kotroman pushed another military attempt into Serbia, assaulting Lord Vitomir of Trebinje and Konavli, but the main portion of his force was defeated by the Young King Stefan Dušan who commanded the forces of King Stefan of Dečani at Pribojska Banja. The Ban's horse was killed in the battle, and he would have lost his life if his vassal Vuk Vukoslavić had not given him his own horse. By doing so,