Byzantine–Ottoman wars

Quick Facts: Who was Byzantine–Ottoman wars?

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Byzantine–Ottoman wars

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A protracted series of conflicts leading to the fall of Byzantium and rise of the Ottomans.

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Origins & Early Life

The Byzantine–Ottoman wars were a series of decisive conflicts between the Byzantine Greeks and Ottoman Turks and their allies that led to the final destruction of the Byzantine Empire and the rise of the Ottoman Empire. The Byzantines, already having been in a weak state even before the dismemberment of their Empire following the Fourth Crusade, failed to recover fully under the rule of the Palaiologos dynasty. Thus, the Byzantines faced increasingly disastrous defeats at the hands of the Ottomans. Ultimately, they lost Constantinople in 1453, formally ending the conflicts (however, several Byzantine holdouts lasted until 1479). Taking advantage of a weakening Byzantine Empire, the Seljuk Sultanate of Rum began seizing territory in western Anatolia, until the Nicaean Empire was able to repel the Seljuk Turks from the remaining territories still under Byzantine rule.

Career & Major Achievements

Constantinople was retaken from the Latin Empire in 1261 by the Nicaean Empire, but the position of the Byzantine Empire in Europe remained uncertain due to the presence of the rival powers in Epirus, Serbia and Bulgaria. This, combined with the declining power of the Sultanate of Rum (Byzantium's chief rival in Asia Minor) led to the removal of troops from Anatolia to maintain Byzantium's grip on Thrace. The decay of the Sultanate of Rum brought unexpected instability to the Anatolian frontier, as warriors known as ghazis began setting up fiefdoms at the expense of the Byzantine Empire. While many Turkish beys participated in the conquest of Byzantine and Seljuk territory, the territories under the control of one such bey, Osman I, posed the greatest threat to Constantinople. Within 90 years of Osman I's establishment of the Ottoman beylik, the Byzantines lost all of their Anatolian territory and by 1400, Byzantine Thrace was also lost to the Ottomans.

Enduring Legacy & Impact

Timur's invasion of 1402, and the subsequent Ottoman Interregnum allowed a ruined Constantinople to stave off defeat until it finally fell in 1453. After having taken the city, Ottoman supremacy in the eastern Mediterranean was largely secured. This helped lead to the end of the Middle Ages and the beginning of the Age of Discovery. Following the Byzantine reconquest of Constantinople in 1261, the Byzantine Empire was left in an isolated position. There was plenty of talk among the remaining Latin duchies of the Greek mainland and other regions of retaking Constantinople for the Latin Empire whilst to the north another significant threat came from Serbian expansion into the Balkans by king Stefan Uroš I. What was once a strong frontier under the Komnenian dynasty at the Danube river now threatened Constantinople itself.

Chronological Milestones & Life Events

1. 1261: 1261 Milestone — Constantinople was retaken from the Latin Empire in 1261 by the Nicaean Empire, but the position of the Byzantine Empire in Europe remained uncertain due to the presence of the rival powers in Epirus, Serbia and Bulgaria.
2. 1400: 1400 Milestone — Within 90 years of Osman I's establishment of the Ottoman beylik, the Byzantines lost all of their Anatolian territory and by 1400, Byzantine Thrace was also lost to the Ottomans.
3. 1402: 1402 Milestone — Timur's invasion of 1402, and the subsequent Ottoman Interregnum allowed a ruined Constantinople to stave off defeat until it finally fell in 1453.
4. 1453: 1453 Milestone — Ultimately, they lost Constantinople in 1453, formally ending the conflicts (however, several Byzantine holdouts lasted until 1479).

Historical Fact-Check Quiz: Byzantine–Ottoman wars

True or False: “The Byzantine Empire retained control over all of its Anatolian territory until the final fall of Constantinople in 1453.”

Answer (FALSE ❌): Byzantium lost all of its Anatolian territory to the Ottomans within 90 years of Osman I's establishment of his beylik.

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