Drina (pronounced [drǐːna]; Serbian Cyrillic: Дрина) was a medieval župa (county) located somewhere in what is now Podrinje (the Drina valley) in eastern Bosnia and Herzegovina and western Serbia. Its location and spread is unclear. The region was part of the first Serbian Principality. John Kinnamos (1143–1185) noted that the Drina separated Bosnia from Serbia, although a 1187 Papal document still identified Bosnia as part of Serbia. When Bosnia became separated politically from Serbia is unclear. The Drina župa was mentioned in the Chronicle of the Priest of Duklja (CPD, ca. 1300), as the site of a battle and the fief of Serbian nobleman Tihomir during Časlav's reign (927–960). The CPD, in chapter IX, holds that Serbia is made up of two provinces, Raška and Bosnia. Drina is mentioned as