Siege of Aleppo (637)

36°11′53″N 37°09′48″E / 36.198133°N 37.16328°E / 36.198133; 37.16328

Siege of Aleppo.
Part of the Muslim conquest of Syria
(Arab–Byzantine wars)

Aleppo citadel
DateAugust–October 637 AD
Location
Result Rashidun Caliphate victory
Territorial
changes
Aleppo captured by the Rashidun Caliphate
Belligerents
Rashidun Caliphate Byzantine Empire
Ghassanids
Commanders and leaders
Khalid ibn al-Walid
Abu Ubaidah ibn al-Jarrah
Joachim
Strength
17,000 Unknown
Casualties and losses
Minimal Unknown but more than Muslims

The siege of Aleppo, the Byzantine stronghold and one of few remaining Byzantine castles in the northern Levant after the decisive Battle of Yarmouk, was laid between August and October 637.