Required to equip himself and his retainers with arms, armor, and sound horses, all of them costly, the crusader—if he survived—usually came home poorer than he went, or left his estate poorer, especially since none of the crusades after the First was either victorious or lucrative. The only recourse, since it was unthinkable to sell land, was to sell communal privileges or commute labor services and bonds of serfdom for a money rent. In the expanding economy of the 12th and 13th centuries, the profits of commerce and agricultural surplus brought burghers and peasants the cash to pay for
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