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Battle of Bosra (1147)

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Title: Battle of Bosra (1147)  
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Subject: Baldwin III of Jerusalem, Nur ad-Din, atabeg of Aleppo, Mu'in ad-Din Unur, List of wars involving France
Publisher: World Heritage Encyclopedia

Battle of Bosra (1147)

Battle of Bosra
Part of the Crusades
Date Summer 1147
Location Bosra, Syria
Result Tactical draw, Damascene strategic victory
Kingdom of Jerusalem Damascus
Mosul and Aleppo
Commanders and leaders
Baldwin III of Jerusalem Mu'in ad-Din Unur
Nur ad-Din Zangi
Unknown Unknown
Casualties and losses
Light Light

In the Battle of Bosra in 1147, a Crusader force commanded by King Baldwin III of Jerusalem fought an inconclusive running battle with Turkish forces from Damascus led by Mu'in ad-Din Unur aided by Nur ad-Din's contingent from Mosul and Aleppo. Since the Frankish army's attempted acquisition of Bosra was thwarted, the campaign ended in a strategic victory for Damascus.


In 1147, Altuntash, the emir of Bosra and Salkhad squabbled with his nominal superior, Mu'in ad-Din Unur, ruler of Damascus. Offended, Altuntash allied himself with the Crusaders and agreed to hand over his two cities. King Baldwin III concentrated his army, crossed the Jordan River and moved toward Bosra, about 65 miles south-southeast of Damascus and 50 miles east of the Jordan.

Running battle

Soon after the Crusader march began, the Damascene army showed up in great strength to contest their advance. Many Latin soldiers were eager for battle, but more cautious heads prevailed. Posting extra guards to watch for a surprise attack, the Frankish army made camp and spent the night. After a council of war the next day, Baldwin and his officers determined to continue the expedition to Bosra in a fighting march. The Latin army moved in the usual formation when opposed by an army of Turkish horse archers. Provision was made to oppose attacks on the van, the flanks and the rear. The Frankish foot soldiers marched in close formation with foot archers ready to fire back at the Turkish horse archers and spearmen ready to repel a direct attack. "In order to maintain the solidity of the column, the pace of the mounted troops was made to conform to that of the infantry."[1]

For four days, the Crusaders advanced toward their intended goal, under constant archery and probing attacks. Further, the soldiers were bedeviled by thirst in the hot summer weather. When they arrived at Bosra, the Franks managed to obtain water and other supplies. The Crusaders' high hopes were dashed when they found that Altuntash's wife, made of sterner stuff than her husband, had introduced a Damascene garrison into Bosra's citadel. Unwilling to chance a siege close to an enemy host, Baldwin elected to withdraw.

The Franks suffered even worse on their return march from the heat, dust and constant harassment by the Turks. One day, the Saracens set fire to the dry brush upwind of the Franks, adding to their misery. The Crusaders carried their dead and wounded with them so that their enemies would not be encouraged by their losses. "Any man who left his place in the ranks was threatened with severe penalties."[2] Leaving the ranks without permission was forbidden. However, one exception was that a knight was allowed to rescue a Christian if he was about to be killed by a Muslim.

As the Franks neared their own territories, the Saracens redoubled their attacks on the Latin rearguard, trying to separate it from the rest of the formation. Near the moment of crisis, a Turk fighting with the Crusaders rode out without leave and killed an opponent in personal combat. This so dismayed the Damascenes and encouraged the Franks that "excuses were found for his breach of orders."[3] Ultimately, the Saracens were unable to stop the Crusader army from recrossing the Jordan and safely returning to the Kingdom of Jerusalem. The running battle lasted twelve days.


Baldwin's bid to capture Bosra and Salkhad was a strategic failure. Mu'in ad-Din Unur seized control of both cities soon afterward. The Bosra fight is interesting on two levels. It shows how careful and cautious the Crusader leaders often were, unlike the popular image of impulsive hotheads. It also demonstrates the ability of a well-led Latin host to literally march through its enemies if discipline and fighting power were maintained. The next actions involving Crusaders were the Second Battle of Dorylaeum in late 1147, the Siege of Damascus in 1148 and the Battle of Inab in 1149.


  • Beeler, John. Warfare in Feudal Europe 730-1200. Ithaca, NY: Cornell University Press, 1971. ISBN 0-8014-9120-7
  • Smail, R. C. Crusading Warfare 1097-1193. New York: Barnes & Noble Books, (1956) 1995. ISBN 1-56619-769-4


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