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20 July 1402Reputable source · 2 sourcesWell documented

Timur crushes Bayezid I at Ankara, and the empire collapses into civil war

The Ottomans' most feared sultan is captured by a Central Asian conqueror, and his sons spend a decade fighting each other for the throne.

On the timeline · around 20 July 1402 · A Frontier Beylik (1299-1453)A Frontier Beylik (1299-1453)The Imperial Peak (1453-1571)Timur crushes Bayezid I at Ankara, and the empire collapses into civil war13501375140014251450

Quick facts

Sultan captured
Bayezid I (r. 1389-1402)
Victor
Timur (Tamerlane) of the Timurid Empire
Aftermath
Ottoman Interregnum, 1402-1413
Reunification
Mehmed I sole ruler from 1413

What happened

Sultan Bayezid I, nicknamed Yildirim, the Thunderbolt, had spent his reign since 1389 expanding into the Balkans and crushing a European crusader army at Nicopolis in 1396. His refusal to submit to the Central Asian conqueror Timur, who had already taken the Ottoman city of Sivas and territory from the Mamluks, brought Timur's forces into Anatolia. At the Battle of Ankara on 20 July 1402, Timur's larger army defeated Bayezid's forces and captured the sultan himself. Bayezid died in captivity within a year. With no clear successor recognized by all factions, the empire fell into the Ottoman Interregnum, an eleven-year civil war among Bayezid's surviving sons that ended only when Mehmed I emerged as sole ruler in 1413.

Why it matters

Ankara came close to ending the Ottoman state outright only a century after its founding, since Timur's victory temporarily restored several Anatolian beyliks the Ottomans had already absorbed. That the empire survived the interregnum and resumed its Balkan and Anatolian expansion within a generation set the pattern for how it would later recover from other catastrophic defeats.

How we know

World History Encyclopedia's dedicated entry on Timur dates the battle and Bayezid's capture; its overview of Ottoman battles and conquests places the defeat and the following Interregnum in the empire's own chronology of near-collapse and recovery.

Sources

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Part of a timelineThe Ottoman Empire31 events · A frontier warband on the edge of Byzantium grows into a 600-year empire spanning three continents, then dissolves into a modern republic.View all →