Sieges of Constantinople

There were at least 11 sieges of Constantinople during the history of the Byzantine Empire. Two sieges resulted in the capture of Constantinople from Byzantine rule: in 1204 by crusaders, and in 1453 by the Ottoman Empire under Mehmed II.

Persian and Arab Sieges of Constantinople

* The First Siege of Constantinople by Avars, Slavs and Sassanid Persians in 626
* The First Arab Siege in 674-678
* The Second Arab Siege in 717-718

ieges by the Bulgars and Rus'

* The Bulgar siege by Krum in 813
* The siege by the Rus' in 860
* The siege by the Rus' in 941

Crusades

* The First Siege of the Fourth Crusade in 1203, in which Alexius IV was able to usurp the throne after Alexius III fled to Thrace.
* The successful Second Siege of the Fourth Crusade in 1204, in which the Byzantines were overwhelmed and the Capital thoroughly sacked.

Ottoman Sieges

* An Ottoman blockade between 1390 - 1402, interrupted first by the Crusade of Nicopolis then successfully so by the Battle of Ankara.

* The First Ottoman Siege of Constantinople (1422)

* The Second Ottoman Siege and Fall of Constantinople in 1453

ee also

* Walls of Constantinople