The various Monk Orders of Europe, the 'Warrior Monks of Holy Christendom' were in regional Monasteries and Cloistered Citadels and were in fact highly trained warriors as well as doctors, lawyers, and clergy. The most educated and cross trained people of the day.
It was an obvious choice to have these various Monk Conrois muster and lead as Holy examples the armies of the First Crusade. As they liberated lands enslaved by Islam the Crusader armies grew until they were able to liberate such iconic cities and regions such as: Antioch - the place where the term 'Christian; was first used by the first Jewish Christians, and other areas like Turbessel, Edessa, others, and then Jerusalem.
Conrois was Franc for Unit and came to represent the various troop units of the Knight combat teams afield.
A Conrois was anywhere from 30-80 Troops with only some being Knights, the others being 'Arms' or Soldiers.