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Second Arab siege of Constantinople

A huge Umayyad army and fleet under Maslama besieged Constantinople by land and sea for thirteen months; Greek fire, a harsh winter, famine and the attacks of the Bulgars forced the Arabs to withdraw.

Date
between 15 July and 15 August 717 – 15 August 718start: exact date unknown: an interval is given; end: exact date · duration: ≈ 13 months
Place
Constantinopletoday: Istanbul, Turkey · Balkans and Anatolia
Participants
Umayyad Caliphate, Maslama ibn Abd al-Malik, Byzantine Empire, Leo III the Isaurian, First Bulgarian Empire, Tervel
Threads
Early medieval Europe (500–1000)
Also known as
Siege of Constantinople (717–718); Осада Константинополя (717—718)

In 716 Maslama, the caliph’s brother, invaded Asia Minor, hoping to exploit the Byzantine civil war; instead the general Leo the Isaurian seized the throne himself in March 717. In the summer the Arab army crossed into Thrace and built siege lines before the Theodosian Walls, while the fleet that arrived on 1 September lost part of its ships to Greek fire and failed to close the Bosporus. The winter of 717–718 was unusually hard, and famine and disease ravaged the besiegers.

In the spring of 718 the Christian Egyptian crews of the Arab relief fleets deserted, the fleets were destroyed, a relief army was ambushed in Bithynia, and the Bulgars of Tervel, allied with Leo, inflicted heavy losses on the Arab camp. On 15 August 718, the feast of the Dormition, the Arabs withdrew; most of their fleet was lost in storms on the way home. It was the last Arab attempt to take Constantinople.

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Connections

Related events

  • First Arab siege of Constantinople674–678 · Balkans and AnatoliaThe second and last great Arab attempt to take the city
  • Battle of Tours10 October 732 · Western and Central EuropeBoth are often named as the victories that halted Muslim expansion into Europe

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Sources

  1. Wikipedia (English): Siege of Constantinople (717–718)
  2. Wikipedia (Russian): Осада Константинополя (717—718)
  3. Treadgold W. A History of the Byzantine State and Society. — Stanford: Stanford University Press, 1997.
  4. Wikidata: Q27900