VENETIAN SUPREMACY 61 times by Greek governors, at others by native princes with Imperial diplomas. In 1180 the great Banus Kulin or Culin came to the throne, shook off Byzantine authority, and ruled the country wisely and well for twenty-four years. He cultivated friendly relations with his neighbours, including Ragusa.1 “ The days of Culin ” became proverbial in later and less happy times to indicate a golden age. After ¿ulin’s death the country’s prosperity declined, but revived to some extent under Matthew Ninoslav (1232). After the death of his successor in 1254 Bosnia fell once more under Hungarian vassalage, and was divided into Bosnia proper (afterwards Bosnia-Maiva) under native vassal Bani, and the district of Usora and Soli ruled by Hungarian magnates. After a short period under the Croatian house of Subid the native prince, Stephen Kotromanic, became Banus under Hungarian suzerainty, and reigned until 1353, when his nephew, Stephen Trvartko or Tvrtko,2 succeeded him and crowned himself king. The land of Hlum or Hum had in early times formed part of the kingdom of Doclea, and included, besides the modern Herzegovina, Tribunia (or Travunia), the peninsula of Sabbioncello, a long stretch of Dalmatian coast, and part of Montenegro. In 1015 it was conquered by the Bulgarian Tsars, whose empire had spread to the Adriatic. The Greek Emperor, Basil II. (Bui-garoktonos), reconquered it in 1019, and in 1050 the native prince Radoslav drove out the Greeks, and made himself ruler of the country. Among his successors was Bodino, who is said to have besieged Ragusa. During 1 See ante. 2 Klaid, Geschichte Bosniens.