What was society, economic, and political life like in europe in the middle ages

The middle ages in Europe were pretty terrible. Politically, kings ruled directly over groups of people, or over whole countries. The kings answered to the Pope generally. Economically, the kings and their nobles owned most of the profits of hard labor, while the townspeople after were treated to low wages.  A sizable gap between classes was seen economically, and there was little room for changes in a persons economic class. Socially, the structure went like this: beggars and thieves, serfs (or non land owning peasants), knights, nobles and bishops, kings, the Pope. 

Require the nobles and clergy to pay taxes.