Our best guess is that somewhere between 60,000 and 100,000 Latin Christians set off on the First Crusade, of which 7,000 to 10,000 were knights, perhaps 35,000 to 50,000 infantry troops and the remaining tens of thousands non-combatants, women and children. What is certain is that the call to crusade elicited an extraordinary response, the scale of which stunned the medieval world. Not since the distant glories of Rome had military forces of this size been assembled.8
