Answer:
king; lords; vassals; serfs
Explanation:
The order from most powerful to least powerful is the following...
king; lords; vassals; serfs
The King was the ultimate power and the person in charge of the entire continent. Lords were the next most powerful individuals who were in charge of individual countries/kingdoms. Vassals were basically special servants of the lords who were granted privilages in exchange for their services. Lastly, would be serfs who were of the lowest social class, they were basically citizens who had to work to survive and could own property as opposed to slaves.
