Answer:
Feudalism was the social system during medieval Europe. The roles of lords was to give their loyalty ad military assistance to the king. The role of the vassals was to give homage and military service to the lords. I hope this helps:))
Explanation:
A. Genghis Khan was the supreme leader of the Mongols
Justinian favorite hobby was to argue about Christian doctrines..his books were 1. codex constitution 2. degista 3. institutiones and 4. novellae constitutiones post codicem.
