Answer:
Feudalism.
Step-by-step explanation:
Feudalism was a predominant political system during Middle Age. It's characterised by decentralisation, a pyramidal system were applied, having Kings,Queens or Emperors on the top. This system used nobles to rule, like Dukes and Marquises. During this period, all the ''progress' was designated to nobles and the Crown, but poor people never benefited about it, even merchants had their struggles due to high taxes they had to pay to the Crown.