lack of central authority, kings gave up authority to local lords. Exchange services for land. Things run at local level. Confusing.
Piece of land given to a person from king to help fight. Not always a good deal.
Generic name for person who owns the land and gives it away for "favors." Hereditary
Person who receives the land. (Confusing, loyalty problem) Hereditary. 2 obligations to Lord 1-Relief -gift something valuable to Lord 2- Aid- Must pay ransom for Lord, gift to daughter, provide hospitality.