guilds are dum
They were the nobility and ran the government with the Church.
Richard the lionheart affected medieval society through his role in the crusades, this has made a major impact on England's wealth and power. Also during his reign the first merchant guild (like a trading centre, market) was created. The guilds were to play a major role in medieval society.
Irish monks played an important role in preserving Roman learning and passing it on to the people of Europe.
In the Late Middle Ages, the church outsourced the production and performance of Mystery and Miracle Plays to the guilds, who developed Morality Plays.
Protection
If you had land, you had power. The more land you had, the more powerful you became. You could influence the government if you wanted to, with just land.
merchants ran very sizable businesses also they dominated the town and grew very wealthy
the concert of Europe
The role Robber Barons played in Medieval European history is two fold - They were the lieges of their respective landships and responsible for the collection of taxes. this is where they received their name from as they often collected more then was needed and kept the difference - this in turn led to rebellion.
Irish monks played an important role in preserving Roman learning and passing it on to the people of Europe.