How did wealth spread during the middle ages?

During the Middle Ages, wealth spread primarily through the feudal system, where land ownership determined economic power. Nobles owned vast estates and granted land to vassals in exchange for military service, creating a hierarchy that concentrated wealth among the upper classes. Trade also began to flourish in the later Middle Ages, particularly with the rise of towns and merchant classes, leading to the emergence of a wealthy bourgeoisie. Additionally, the Catholic Church accumulated significant wealth through land and donations, further influencing the distribution of resources.