Stephen Dabiša (; ; died on 8 September 1395) was as a member of the Kotromanić dynasty who reigned as King of Bosnia from March 1391 until his death. Elected to succeed the first king, Tvrtko I, Dabiša at first maintained the integrity of the Kingdom of Bosnia. He successfully resisted Hungary, Naples, and even Ottoman Turks. The latter part of his reign, however, saw the ascent of magnates and considerable loss of Bosnia's territory and influence. Background Dabiša's relationship with the rest of the Kotromanić family is uncertain. In a letter, Dabiša called himself younger brother of Tvrtko I, who became Ban of Bosnia in 1353, but this should not be taken literally. Influenced by the writings of the 16th century Ragusan chronicler Mavro Orbini, modern historiography usually describes Dabiša as the illegitimate son of Ninoslav, who was the brother of Tvrtko's father Vladislav. According to Orbini, Dabiša ruled the župa (county) of Neretva (corresponding to the area around the Upper Neretva and the town of Konjic) and, supporting Tvrtko's brother Vuk, took part in the rebellion that led to the deposition of Tvrtko in 1366. Dabiša, however, is the only rebel mentioned by Orbini whose name does not appear in contemporary accounts of the uprising. Tvrtko prevailed in 1367 and banished Dabiša, revoking his lands. Dabiša spent the following two decades in obscurity, while Tvrtko had himself crowned King of Bosnia in 1377. Election and initial success Dabiša appears to have mended his relations with King Tvrtko I in the late 1380s, as he is recorded at royal court in Sutjeska in June 1390. Under unclear circumstances following Tvrtko's sudden death on 10 March 1391, Dabiša was elected king by the rusag. He immediately notified the authorities of the neighbouring republics of Venice and Ragusa, which recognized his accession on 1 and 15 June respectively, as well as the kings Sigismund of Hungary and Ladislaus of Naples. Following in his predecessor's footsteps, Dabiša took up using the royal name Stephen. In the first years of his reign, Dabiša successfully maintained the integrity of Tvrtko's Kingdom of Bosnia, which included not only Bosnia proper, but also Croatia proper, Dalmatia, Zachlumia, and Rascia. The former two had been conquered from King Sigismund and Queen Mary of Hungary, and the Republic of Ragusa's immediate attempts to convince the Dalmatian cities to return to the fold of the Hungarian Crown ended in