Key Facts
- Date
- 29–30 October 1483
- Duration of battle
- 2 days
- Location
- Una River crossing near Brod Zrinski (Novi Grad)
- Truce signed
- 7-year truce with Sultan Bayezid II
- Ottoman origin
- Mostly from the Sanjak of Bosnia
Strategic Narrative Overview
The Croatian army, commanded by Ban of Croatia Matthias Geréb and reinforced by members of the House of Frankopan, other Croatian nobles, and Vuk Grgurević, the Despot of Serbia, moved to intercept the Ottoman column near the Una River crossing at Brod Zrinski. Over two days of fighting on 29 and 30 October 1483, Croatian and allied forces engaged and defeated the Ottoman contingent, preventing the crossing and inflicting a notable setback on the regional Ottoman military.
01 / The Origins
By the late 15th century, Ottoman forces from the Sanjak of Bosnia conducted regular raiding and expansionist incursions into Croatian and Hungarian-controlled territories. The Kingdom of Croatia faced mounting pressure along its southern and eastern frontiers. In 1483, a significant Ottoman force moved toward the Una River, prompting Croatian military leadership to organize an intercept. The geopolitical stakes involved both the defense of Croatian lands and the broader struggle to contain Ottoman expansion into Central Europe.
03 / The Outcome
The Ottoman defeat at the Una River represented one of the first significant Croatian battlefield successes against the Ottomans. In its aftermath, diplomatic contact was established and a seven-year truce was concluded with Sultan Bayezid II, providing Croatia temporary respite from Ottoman incursions. The victory, while not permanently altering the strategic balance, demonstrated that coordinated Croatian resistance could check Ottoman regional advances.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Side B
1 belligerent
Matthias Geréb (Ban of Croatia), Vuk Grgurević (Despot of Serbia).
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.