The priests, abbots and bishops belonged to the same social group warrior nobility, and were responsible for the direction of one of the most important institutions of the Middle Ages, the Church.
The importance of the Church, had consolidated long ago, when the Roman Empire had donated large tracts of land in different parts of Europe. This power made the lives of bishops and abbots warp. away from the basic principles of Catholicism: poverty, obedience and chastity. Led a life of riches, vassals who surrendered tributes and taxes and serfs who worked the land.
To justify this comfortable lifestyle, theologians who strove to maintain harmonious society should be be three social class, interdependintes: the warring, those praying and working. Other important functions of the church, was that many monasteries and churches were dedicated to translate, interpret and archive all the books of the time., Which made him transform into true centers of culture. The language used was Latin, considered cultured and universal language. Also there were the priests.
The peasants were the lowest class of this era, and were engaged in animal husbandry and agriculture. These activities have been developing for several centuries ago, when the decline of the Roman Empire began. Each family worked as a production unit and produced what needed to live. Eventually they must also produce to keep the warrior and religious nobility. The peasants also joined forming villages, located in the middle of vast expanses of fields. They were very poor, formed by mud and straw houses.
In these communities there were other people doing other activity were craftsmen, they worked wood, metal, clay, leather, etc. His works were used in agricultural production and in daily life. The peasant proprietors were not actually true duels were those of the aforementioned nobility.