Key Facts
- Duration of siege
- 15 September – 8 October 1789 (~3 weeks)
- Austrian force size
- 120,000 soldiers
- Austrian artillery
- Over 200 cannons
- Austrian possession
- Held Belgrade 1789–1791
- Austrian commander
- Feldmarschall Ernst Gideon von Laudon
Strategic Narrative Overview
In mid-September 1789, Laudon's army of 120,000 soldiers and more than 200 cannons crossed the Sava River and encircled Belgrade. Despite the Austrian army being significantly hampered by illness throughout the campaign, the besiegers cleared Ottoman forces from the city's suburbs by the end of September. A sustained and destructive artillery bombardment forced the Ottoman commander, Osman Pasha, into negotiations, and he agreed to surrender on 7 October in exchange for free passage for his garrison.
01 / The Origins
At the urging of Russian Empress Catherine the Great, Holy Roman Emperor Joseph II committed the Habsburg monarchy to war against the Ottoman Empire. Austrian efforts in 1788 had yielded limited results, capturing one fortress but failing broadly. Joseph appointed the experienced Feldmarschall Ernst Gideon von Laudon to command the main army in late July 1789 with explicit orders to take Belgrade, a strategically vital Ottoman fortress on the Danube.
03 / The Outcome
Osman Pasha formally surrendered the fortress on 8 October 1789, and Austria took possession of Belgrade. The city remained under Habsburg control until 1791, when it was returned to the Ottoman Empire under the terms of the subsequent peace treaty ending the Austro-Turkish War. Several Austrian officers who served with distinction at Belgrade went on to hold prominent commands during the French Revolutionary Wars and Napoleonic Wars.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Ernst Gideon von Laudon.
Side B
1 belligerent
Osman Pasha.
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.