Byzantine–Bulgarian wars

Quick Facts: Who was Byzantine–Bulgarian wars?

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Byzantine–Bulgarian wars

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A long-running series of conflicts (499–1355) between the Byzantine and Bulgarian Empires.

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2Day Chrono-Wiki & Primary Historical Archives

Origins & Early Life

The Byzantine–Bulgarian wars were a series of conflicts fought between the Byzantine Empire and the Bulgarian Empire which began already in the late 5th century when the Bulgars defeated a 15.000 Roman army led by Magister Aristus (499 AD). The Bulgars permanently conquered parts of the Balkan Peninsula after 680 AD. The Byzantine and First Bulgarian Empire continued to clash over the next century with varying success, until the Bulgarians, led by Krum, inflicted a series of crushing defeats on the Byzantines. After Krum died in 814, his son Omurtag negotiated a thirty-year peace treaty. Simeon I had multiple successful campaigns against the Byzantines during his rule from 893 to 927.

Career & Major Achievements

His son Peter I negotiated another long-lasting peace treaty. His rule was followed by a period of decline of the Bulgarian state. In 971 John I Tzimiskes, the Byzantine emperor, subjugated much of the weakening Bulgarian Empire by defeating Boris II and capturing Preslav, the Bulgarian capital. Samuel managed to stabilize the Bulgarian state with its center around the town of Prespa. Near the end of his rule, the Byzantines regained the upper hand, and under Basil II they won the Battle of Kleidion and completely conquered Bulgaria in 1018.

Enduring Legacy & Impact

There were rebellions against Byzantine rule from 1040 to 1041, and in the 1070s and the 1080s, but these failed. In 1185, however, Theodore Peter and Ivan Asen started a revolt, and the weakening Byzantine Empire, facing internal dynastic troubles of its own, was unable to quash the revolt. After the army of the Fourth Crusade conquered Constantinople in 1204, Kaloyan, the Bulgarian emperor, tried to establish friendly relations with the crusaders. However, the newly created Latin Empire spurned any offer of alliance with the Bulgarians. Because of his cold reception, Kaloyan allied with the Nicaeans, which reduced the crusaders' power in the area.

Chronological Milestones & Life Events

1. 1018: 1018 Milestone — Near the end of his rule, the Byzantines regained the upper hand, and under Basil II they won the Battle of Kleidion and completely conquered Bulgaria in 1018.
2. 1040: 1040 Milestone — There were rebellions against Byzantine rule from 1040 to 1041, and in the 1070s and the 1080s, but these failed.
3. 1185: 1185 Milestone — In 1185, however, Theodore Peter and Ivan Asen started a revolt, and the weakening Byzantine Empire, facing internal dynastic troubles of its own, was unable to quash the revolt.
4. 1204: 1204 Milestone — After the army of the Fourth Crusade conquered Constantinople in 1204, Kaloyan, the Bulgarian emperor, tried to establish friendly relations with the crusaders.

Historical Fact-Check Quiz: Byzantine–Bulgarian wars

True or False: “The Byzantines achieved total, undisputed military dominance over Bulgaria immediately following the collapse of the Fourth Crusade in 1204.”

Answer (FALSE ❌): Although the Byzantines regained some ground after the Latin Empire's collapse, Theodore Svetoslav was able to retake portions of Thrace from them.

Contemporary Figures & Related Historical Timelines

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• Michael Psellos — Historical peer (Born in 1018) (1018): A towering Byzantine polymath, philosopher, and chronicler of the 11th century.
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