What was a lord's duties to his vassals? What were s vassal's duties to his lord

Explanation: Under the feudal contract, the lord had the duty to provide the fief for his vassal, to protect him, and to do him justice in his court. In return, the lord had the right to demand the services attached to the fief (military, judicial, administrative) and a right to various “incomes” known as feudal incidents.

answer; i believe the above statement is (true);