Why did the lord transfer part of his lands to the vassals?

1.Why did the lord transfer part of his lands to the vassals? 2. What were the duties of a vassal to a lord? 3. Why did subsistence farming dominate in the High Middle Ages? 4. What is the connection between the rule of natural economy and feudal fragmentation? 5. What were the main occupations of the peasants and feudal lords in the Middle Ages?

For his military service, the lord handed over the lands to his vassals. Initially, the land was in the use of the vassal, while he was carrying out military service, then this land allotment began to be inherited. Since the feudal fragmentation prevailed, the region was disunited, so each feudal land tried to provide itself with everything necessary by itself, producing everything on its territory, that is, conducting a subsistence economy. In the Middle Ages, peasants worked for the land, and feudal lords carried out military service.