"Antioch is so well fortified that it need not fear attack by machinery nor the assault of man, even if all mankind came together against it." -Chaplain of Raymond IV of Toulouse.
October 21, 1097- The main Crusader army, led by Godfrey of Bouillon, Bohemund of Taranto, and Raymond IV of Toulouse begin the siege of Antioch, a major Turkish fortress in their path to Jerusalem. Two Turkish relief armies were defeated in the field while the Crusaders maintained the siege, but by early the following year, most Christian soldiers were dying of starvation or disease. Via collaboration with a traitor inside Antioch, Bohemund was able to storm the walls and open the gate, under the agreement with other Crusaders that Antioch was to be his once taken.
Having taken the city but not the citadel, the Crusaders were then besieged by a third relief army from Mosul, led by the Atabeg Kerbogha. Discovery of what was believed to be the Holy Lance by a monk named Peter Bartholomew inspired the beleaguered Crusaders to inflict an overwhelming defeat on Kerbogha. Upon seeing this, the remaining Muslims in Antioch quickly surrendered.
Picture- Medieval miniature painting of the Siege of Antioch, 1490