HistoryData
Historical EmpireBelgrade

Kingdom of
Serbia

Active Reign Period
17181739AD
Calculated Duration
21 Years

A short-lived Habsburg crownland, the Kingdom of Serbia (1718–1739) introduced Western administrative reforms and self-governance that fostered a nascent Serb middle class before Ottoman reconquest.

Key Facts

Duration
1718 – 1739 (21 years)
Population (start)
~270,000
Population (end)
~400,000
Predecessor territory
Ottoman Sanjak of Smederevo
Governing power
Habsburg monarchy

Imperial Zenith Metrics

Population
400K
at peak
Capital
Belgrade
Duration
21yrs

Historical Trajectory

Phase I: Rise

The Kingdom of Serbia was established in 1718 following the Habsburg conquest of the Ottoman Sanjak of Smederevo during the Habsburg-Ottoman War of 1716–1718. The Treaty of Passarowitz formalized Habsburg control over territories south of the Sava and Danube rivers. The new crownland was organized within the Habsburg administrative framework, granting the Serbian population limited self-government and an autonomous militia.

Phase II: Zenith

Under Habsburg rule, the province experienced notable demographic and economic growth, with population rising from roughly 270,000 to 400,000. Serbs benefited from integration into Habsburg trade networks and self-governing institutions, which stimulated the growth of a Serb merchant and professional middle class. These reforms were sufficiently effective that the Ottomans later continued them after regaining control.

Phase III: Decline

The Habsburg-Ottoman War of 1737–1739 reversed Habsburg fortunes in the Balkans. Military defeats exposed the limits of Habsburg power in the region, and the Treaty of Belgrade in 1739 returned the Kingdom of Serbia to Ottoman control. The Habsburg withdrawal triggered the second Great Migration of the Serbs (1737–1739), as large numbers of Serbs fled northward into Habsburg-controlled territories rather than remain under Ottoman rule.

Notable Imperial Reigns

Selected rulers mapping the empire’s trajectory