The medieval system of feudalism was characterized by a hierarchical relationship between lords and their vassals. At the heart of this system was the agreement between a lord and his vassal, which set out the terms of their relationship and the obligations that each party had to fulfill.

The agreement between a lord and his vassal was known as a ”feudal contract” or a ”vassalage oath.” It was typically made in the form of a public ceremony, during which the vassal swore an oath of fealty to his lord, promising to serve and protect him in exchange for certain rights and privileges.

One of the most important obligations of the vassal was to provide military service to his lord. This was usually in the form of a specified number of knights or soldiers, who would be called upon to fight on behalf of the lord in times of war. In return for this service, the lord would provide the vassal with protection, support, and sometimes land or other rights.

Another important aspect of the feudal contract was the concept of ”homage,” which referred to the act of the vassal publicly acknowledging his lord as his superior. This was often accompanied by a physical act of submission, such as kneeling or bowing before the lord. In return, the lord would grant the vassal certain rights and privileges, such as the right to use and profit from a particular parcel of land.

The feudal contract also included provisions for inheritance and succession. If the vassal died without heirs, his lands and duties would pass to his lord, who would then select a new vassal to fill the vacancy. However, if the vassal had sons or other male relatives, they would have the right to inherit his lands and duties, provided they were willing to swear the same oath of fealty to the lord.

Overall, the agreement between a lord and his vassal was a complex and hierarchical system that governed many aspects of medieval life. While it may seem archaic and outdated by modern standards, it was a crucial component of medieval society and helped to maintain social order and stability for centuries.