Siege of Acre (1189–1191)
First major Crusader counterattack against Saladin, lasting nearly two years.
The siege of Acre, lasting from August 1189 to July 1191, was the first major offensive launched by Guy of Jerusalem against Saladin, the Sultan of Egypt and Syria. This key conflict became part of the Third Crusade. Because Acre sat on the coast, the attacking Latin forces could not fully surround the city, and Saladin could not completely cut it off; both sides received supplies and reinforcements by sea. The siege ended as a crucial Crusader victory and dealt a serious blow to Saladin’s goal of wiping out the Crusader states.
Egypt had been ruled by the Shi’ite Fatimid dynasty since 969, independent of the Sunni Abbasid caliphs in Baghdad and with its own rival caliph. The caliph’s chief administrator, the vizier, handled governance. After 1121, political infighting and murderous intrigue set in, and Egypt’s former prosperity declined. Baldwin III of Jerusalem planned an invasion, halted only when Egypt paid a tribute of 160,000 gold dinars. In 1163, the deposed vizier Shawar sought help from Nur ad-Din, the atabeg of Aleppo and son of Zengi, in Damascus. Some historians see Nur ad-Din’s support as a visionary plan to encircle the Crusaders, but he hesitated and only acted when it seemed the Crusaders might gain a permanent foothold on the Nile. He sent his Kurdish general Shirkuh, who invaded Egypt and restored Shawar. Shawar then asserted his independence and allied with Amalric of Jerusalem, Baldwin’s brother and successor. When Amalric broke the alliance with a fierce attack, Shawar again asked Syria for help, and Nur ad-Din sent Shirkuh a second time. Amalric withdrew, but the victorious Shirkuh executed Shawar and became vizier. Two months later, Shirkuh died and was succeeded by his nephew, Yusuf ibn Ayyub, known by his honorific Salah al-Din (“goodness of faith”), westernized as Saladin. Nur ad-Din died in 1174. He was the first Muslim to unite Aleppo and Damascus during the Crusades. Some Islamic contemporaries promoted the idea of a natural Islamic resurgence under Zengi, then Nur ad-Din, then Saladin, but the reality was less straightforward. Saladin imprisoned all the caliph’s heirs, preventing them from having children—rather than killing them, which was usual—to end the bloodline. After his overlord Nur ad-Din’s death, Saladin faced a strategic choice: make Egypt an autonomous power or try to become the leading Muslim in the Eastern Mediter
- Start date
- August 1189
- End date
- July 1191
- Location
- Acre (on the Gulf of Haifa)
- Belligerents
- Crusaders (led by Guy of Jerusalem) vs. Ayyubids (led by Saladin)
- Outcome
- Crusader victory
- Key commanders
- Guy of Jerusalem, Conrad of Montferrat, Saladin
Lore & Background
Guy of Jerusalem, having been released by Saladin after the Battle of Hattin, was refused entry to Tyre by Conrad of Montferrat. Needing a base, Guy marched south with his troops along the coast, while Pisan and Sicilian fleets went by sea, to attack Acre. Guy's initial assault on the walls failed, and he established a camp outside the city to await reinforcements, which began arriving by sea days later. Danish, Frisian, French, Flemish, German, Italian, and Armenian troops joined the siege, swelling the Crusader army to 30,000 infantry and 2,000 cavalry by the end of September 1189.
Saladin gathered his forces and marched to Acre, attacking Guy's camp on 15 September. On 4 October, Saladin moved east of the city to confront the Crusader camp. The siege was characterized by both sides receiving supplies by sea, as the city's coastal position prevented a full blockade. The conflict between Guy and Conrad persisted, but both remained allies against Saladin. The siege concluded in July 1191 as a key victory for the Crusaders.
Reader's Guide
The siege of Acre (1189–1191) marked a turning point in the Third Crusade, representing the first major offensive by the Crusader states after the catastrophic defeat at Hattin. Its significance lies in the demonstration that Saladin's momentum could be halted, and that the Latin forces could still mount a sustained campaign. The siege also highlighted the internal divisions among the Crusaders, particularly the rivalry between Guy of Jerusalem and Conrad of Montferrat, which would shape subsequent events. For Saladin, the loss of Acre was a serious setback, undermining his ambition to eliminate the Crusader states. The siege's duration and the involvement of multiple European contingents foreshadowed the larger, more organized efforts of the later Crusades. The coastal nature of the siege, with both sides relying on sea-borne supplies, underscored the strategic importance of naval power in the Levant. Ultimately, the fall of Acre provided the Crusaders with a vital port and base for further operations, while Saladin's failure to relieve the city exposed the limits of his military reach.
Did You Know?
- The siege lasted from August 1189 until July 1191.
- Both the attacking Latin forces and Saladin's army received supplies and resources by sea during the siege.
- Guy of Jerusalem initiated the siege after being refused entry to Tyre by Conrad of Montferrat.
- Armenian troops under Leo II of Cilicia took part in the siege.
The Road to Acre: Hattin and the Call to Arms
The siege of Acre did not emerge in a vacuum. It was the direct consequence of a catastrophic chain of events that reshaped the Eastern Mediterranean. After Saladin's decisive victory at the Battle of Hattin, where he lured King Guy's largest-ever Jerusalem army into waterless terrain and routed them, much of Palestine fell rapidly, including Jerusalem after a mere five-day siege. The shock of this defeat was so profound that, according to Benedict of Peterborough, Pope Urban III died of deep sadness upon hearing the news. His successor, Gregory VIII, issued the papal bull Audita tremendi, proposing a new Crusade to recapture Jerusalem. When Frederick I of the Holy Roman Emperor drowned in the Saleph River en route, few of his men reached the coast. Into this fractured landscape stepped Guy of Jerusalem, launching what became the first significant counterattack against Saladin—a campaign that would crystallize into the Third Crusade and culminate at the walls of Acre.
A Siege of Two Years: The Coastal Stalemate
The siege of Acre stretched from August 1189 to July 1191, making it one of the longest and most grinding engagements of the Crusader era. The city's position on the coast created a unique strategic paradox: the attacking Latin forces could not fully take the city, yet Saladin could not fully relieve it either. Both sides maintained their war efforts through maritime supply lines, receiving resources and reinforcements by sea. This meant the siege became a prolonged contest of endurance rather than a single dramatic assault. For Saladin, the outcome represented a serious blow to his broader ambition of eradicating the Crusader states entirely. For the Crusaders, it stood as a key victory and a tangible counter to the losses of 1187. The coastal geography thus transformed Acre into a microcosm of the wider conflict—a place where neither side could achieve total dominance, and where the sea itself became the decisive strategic factor.
The Fractured Crusader Leadership: Guy and Conrad
The political disunity among the Crusaders at this time was as significant as any military factor. In Tyre, Conrad of Montferrat had successfully entrenched himself and repelled Saladin's assault at the end of 1187, earning him enormous prestige. When Saladin attempted to negotiate Tyre's surrender in mid-1188, the terms included the release of King Guy, who had been captured at Hattin and widely blamed for that catastrophe. Guy was freed and appeared before Tyre, but Conrad refused him entry, claiming he was administering the city until the kings arrived from Europe to settle the succession in accordance with Baldwin IV's will. Guy departed, then returned with his wife Queen Sibylla, who held the legal title to the kingdom, only to be rejected again. He set up camp outside the gates. This bitter rivalry between Guy and Conrad underscored how internal disputes over legitimacy and blame complicated the Crusaders' ability to present a united front.
Saladin's Calculus: Fortify or Destroy?
Faced with the prospect that Crusaders might attempt to seize Acre, Saladin and his advisors debated a critical strategic question: should the city's fortifications be reinforced, or should the city be destroyed entirely to deny it to the enemy? Saladin chose to strengthen the defenses. Historian Hannes Möhring has suggested that the destruction option would only have been viable if a similar policy had been applied to every other coastal city and port simultaneously—a logistical impossibility. This decision reflected Saladin's broader strategic vision: rather than playing a purely defensive or scorched-earth game, he sought to maintain a coherent territorial domain stretching from the Nile to the Euphrates. His earlier overconfidence at Montgisard had humbled him, and after a life-threatening illness he committed fully to his role as champion of Islam. The siege of Acre would ultimately test whether that ambition could withstand a determined Crusader counteroffensive.
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