Bosnian linguist Asim Peco noted that almost all names of individuals from Vrsinje were Serb. Vrsinje was an old county of the province of Travunija.) It was located in the eastern part of its territory. It was held by the medieval Serbian state until the late 14th century. It was held by magnates Nikola Altomanović until 1373, then Đurađ I Balšić until 1377, after which it was taken by Tvrtko I of Bosnia, during the Fall of the Serbian Empire. Bosnian magnate Sandalj Hranić received southern Konavle and its city Sokol in 1392, and also held Vrsinje (as mentioned in 1424). In the 1440s, there were frequent flights from Trebinje, Vrsinje and Dračevica into Ragusan territory. After Bosnian king Stephen Thomas and the Serbian despot reconciled, the Republic of Ragusa proposed a league against the "Duke of St. Sava", Stjepan Vukčić Kosača. In 1451, King Stephen Thomas ceded over the counties of Vrsinje and Dračevica to Ragusa. The Ragusans were allowed to raise castles in the ceded territory. Thomas' charter from 18 December 1451 also included the obligation that he would attack Stjepan Vukčić Kosača, but the ceding was only theoretical, as Duke Stjepan firmly held those territories. During the period of the Duchy of St. Sava, Vrsinje changed hands several times from the Duchy to the Ottomans, and from the Ottomans back to the Duchy. Vrsinje was held by the Ottomans already in September 1465. Ottoman "subaşi" are present in Vrsinje on 17 April and 20 August 1466, while Vlachs shepherd community of Zupci, as "jurisdictio Turcorum", are present there on 7 October 1466. As seen from the Ottoman "defter" of 1475–77, the Zupci "nahija" replaced Vrsinje. The Zupci had earlier been mentioned as a family or people part of Vrsinje; in 1403 as "homo de Versigna Xubeç", in 1421 as "de Versigne de genere Zubaç", in 1466 as "de Versigne Vlachos Xubci sic dictos".