dark ages

In the dark ages people used to live about twenty something and then they died ( they lived young but now people can live five times that ). There were three types of people in the dark ages, the peasants were the lowest people that did all the work but they were protected by guards, if they did not do any work they would not be protected then be killed by bandits, the second one is the lord, they are higher than peasants but they are not the leader, there are a few lords in each city, they own some of the land, the king is the one who owns the city and they can kill anyone they want, he can even kill people for a stupid reason like, I don't like that guy he is ugly or that guy is stupid kill him but people soon complained then they could not do that.