PLZZ HELP MEE
List the four obligations the nobles owed to their king (or lord)

Loyalty, service, protection, and provisions for knights

Explanation: Obligations owed were providing land & protection to working peasants, providing necessary money, military service, and supplies for the king.

the exodus of these people from constantinople contributed to the revival of greek and roman studies, which led to the development of the renaissance in humanism and science. byzantine emigrants also brought to western europe the better preserved and accumulated knowledge of their own greek civilization