Ottoman advance into Bosnia (1470s)

Timeline

1. 1471–1475Central Bosnia · Bosnia and HerzegovinaThe Ottomans established an administrative center in Sarajevo, reorganizing most of Bosnia into the sanjak system and pursuing Islamization and timar fief grants. In the early 1470s they raided northward repeatedly, threatening Hungarian-held Slavonia and the approaches to Jajce fortress; local Bosnian resistance had largely collapsed, with remaining nobles either converting or going into exile.
2. 1471–1477Herzegovina · Bosnia and HerzegovinaVlatko Hercegović, son of Herceg Stefan, inherited the Herzegovina lands and maintained semi-autonomy under Ottoman suzerainty, using Mostar as a base for trade with Venice and Dubrovnik. In the 1470s the Ottomans repeatedly pressed him to surrender fortresses and increase tribute; Vlatko navigated between submission and resistance, leaving Herzegovina one of the last Bosnian remnants in the Balkans not fully Ottomanized.
3. 1476–1480Jajce · Bosnia and HerzegovinaOttoman forces and Hungarian border troops fought repeatedly around fortresses such as Jajce and Knin. Jajce, a symbolic stronghold of the nominal continuation of the Kingdom of Bosnia, held for the time being under the strengthened defenses of Matthias Corvinus, but Ottoman control of the surrounding countryside steadily expanded. By 1480, a long-term military standoff had taken shape along the Bosnia-Croatia frontier.