Koča's frontier rebellion (Kočina Krajina revolt) was an uprising of Serbs against the Ottoman Empire from February 1788 - September 7, 1788. Koča Andjelković (1755 - 1789) was the leader of the uprising which was aided by the Habsburg Empire. It enabled the Habsburgs to conquer central parts of present-day Serbia from the Ottomans, attaching the territory of the Pashaluk of Belgrade to other Serb-populated areas of their Empire. The crownland of (third) Habsburg Serbia existed for 3 years.
Koča's frontier (area of anti-Ottoman rebellion) in 1788.