| Avar–Persian siege of Constantinople | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Part of Byzantine–Sasanian War of 602–628 and the Avar–Byzantine Wars | |||||||||
&sq=Envato&lang=en&file=File:42-manasses-chronicle.jpg) Depiction of the siege from the Chronicle of Constantine Manasses | |||||||||
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| Belligerents | |||||||||
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Sassanid Empire Avar Khaganate Sclaveni | Byzantine Empire | ||||||||
| Commanders and leaders | |||||||||
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Bayan III Shahrbaraz Kardarigan |
Patriarch Sergius Magister Bonus Theodore | ||||||||
| Strength | |||||||||
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George of Pisidia:
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Theodore Synkellos:
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&sq=Envato&lang=en&file=File:Location_map_Istanbul.png)  Location within Istanbul &sq=Envato&lang=en&file=File:Relief_Map_of_Mediterranean_Sea.png) Siege of Constantinople (626) (Mediterranean) &sq=Envato&lang=en&file=File:Map_of_the_Black_Sea_with_bathymetry_and_surrounding_relief.svg) Siege of Constantinople (626) (Black Sea) | |||||||||
The siege of Constantinople in 626 by the Sassanid Persians and Avars, aided by large numbers of allied Slavs, ended in a strategic victory for the Byzantines. The failure of the siege saved the empire from collapse, and, combined with other victories achieved by Emperor Heraclius (r. 610–641) the previous year and in 627, enabled Byzantium to regain its territories and end the destructive Roman–Persian Wars by enforcing a treaty with borders status quo c. 590.
- ^ Hurbanič, Martin (2019). The Avar Siege of Constantinople in 626. Springer. p. 135. ISBN 978-3030166847.
- ^ Hurbanič, Martin (2019). The Avar Siege of Constantinople in 626. Springer. pp. 163–164. ISBN 978-3030166847.