What does liege mean?

Answer 1

A liege was someone who owed a duty of service to a lord in feudal times (middle ages) although it could also mean the lord himself. A liege lord was the lord to whom you owed the service.

Answer 2

A liege is a feudal lord or monarch to whom allegiance and loyalty are owed by vassals or subjects. It can also refer to a superior to whom one owes loyalty or service.