Acre Falls, Ending the Crusader States
A month of Mamluk bombardment destroys the last major crusader stronghold in the Holy Land
Quick facts
- Location
- Acre
- Mamluk sultan
- Khalil
- Defenders
- About 1,000 knights, 14,000 infantry, including the Templars, Hospitallers, and Teutonic Knights
- Result
- City falls; end of the Crusader States founded in 1099
What happened
Mamluk Sultan Khalil marched on Acre with an army of roughly 45,000 and around 100 siege catapults, including one so large it took a month and 100 carts to haul it from Krak des Chevaliers. Acre's defenders, numbering around 1,000 knights and 14,000 infantry from local forces, pilgrims, and the Templars, Hospitallers, and Teutonic Knights, held out through April and early May. By early May there were barely enough men to cover the full length of the walls, and King Henry's offer to negotiate was refused: Khalil wanted total victory. On 18 May, after Mamluk sappers had already collapsed several towers, a final assault began with continuous bombardment and 300 drummers riding camels to signal the attack. The historian T. Asbridge called the barrage "unlike anything yet witnessed in the field of Crusader warfare." The city fell into chaos; those who reached the harbor in time escaped by ship, while many others were killed or enslaved. A garrison of Templars held out in their fortified quarter for another ten days before being captured and executed.
Why it matters
Acre's fall ended the Crusader States founded in 1099, closing out nearly two centuries of continuous Christian rule in the Levant. Sultan Khalil then systematically destroyed the remaining coastal cities and even the region's orchards and irrigation systems specifically to prevent any future crusade from using them.
How we know
A contemporary eyewitness account preserved by the World History Encyclopedia describes individual acts of resistance during the final assault, including the Hospitaller marshal Mathew of Claremont's defense of a breached gate, alongside the historian T. Asbridge's assessment of the unprecedented scale of the Mamluk bombardment.
Sources
- World History Encyclopedia. The Siege of Acre, 1291 CE · Primary source (author-declared)worldhistory.org · Cited as a "primary" source (no stronger domain match). · Link is live and its text matches the event's key terms (Jul 2026)
- World History Encyclopedia. The Siege of Acre, 1291 CE · Reputable sourceworldhistory.org · The domain "worldhistory.org" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
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