Crusaders Capture Jerusalem During First Crusade

Context

By the late eleventh century, Jerusalem had changed hands among Islamic powers, with the Seljuk Turks assuming control in 1071 and imposing stricter measures that restricted Christian pilgrimage and worship. These developments alarmed the Byzantine Empire, whose ruler Alexius I Comnenus faced mounting pressure from the same Turkish forces along his eastern borders. In response, he appealed to Pope Urban II for military assistance from the West.

Urban II seized the opportunity in 1095, issuing a public call at the Council of Clermont for Western knights to march east. The appeal framed the expedition as both a defensive effort to aid Eastern Christians and a penitential campaign to reclaim the Holy Sepulchre. Thousands answered, forming a coalition of noble-led armies rather than a single unified force.

The principal contingents departed Europe in 1096, crossing into Asia Minor the following year. Early successes at Nicaea and Antioch demonstrated the crusaders’ determination, yet disease, desertions, and combat steadily reduced their ranks before they reached their ultimate objective.

What Happened

The surviving crusader army, numbering roughly 1,200 mounted knights and 12,000 infantry, arrived before Jerusalem on June 7, 1099. Finding the city strongly fortified under Fatimid Egyptian governance, the leaders—among them Godfrey of Bouillon, Raymond of Toulouse, and Bohemond of Taranto—ordered the construction of three large siege towers and other engines.

By mid-July the towers stood ready. On the night of July 13–14 the crusaders pushed them toward the walls and began scaling operations. Godfrey’s contingent succeeded first, breaking through near the Gate of Saint Stephen and opening a path for the rest of the army to enter the city on July 15.

With the walls breached, the crusaders rapidly overran the defenses. The Fatimid governor surrendered the Tower of David to Raymond’s forces, completing the capture after weeks of investment and direct assault.

Aftermath

An Egyptian relief army approached Jerusalem within weeks but was defeated by the outnumbered crusaders at the Battle of Ascalon in August 1099. This victory temporarily secured the crusaders’ hold on the city.

The victorious leaders soon divided authority in the newly won territories, establishing a patchwork of Latin Christian principalities across the Levant that would persist for generations.

Legacy

The fall of Jerusalem in 1099 created four principal Crusader states— the Kingdom of Jerusalem, the Principality of Antioch, the County of Edessa, and the County of Tripoli—altering the political map of the eastern Mediterranean for nearly two centuries. The event also sharpened the religious and military confrontation between Christian and Muslim powers in the region.

Subsequent popes repeatedly invoked the 1099 victory to launch further expeditions, while European chronicles and art preserved the capture as a defining moment of medieval piety and chivalry. Historians continue to examine the campaign as a pivotal episode in the longer history of East-West relations.