yes
Yes, the Church was very powerful during the Middle Ages.
Italian church art in the Middle Ages included frescoes and mosaics which were mainly architectural in nature. Color and gold leaf were very popular at this time.
Roman Catholic Church
The most important Church of the Middle Ages was the Catholic Church. When it split in 1054, it became the Roman Catholic Church in the West and the Eastern Orthodox Church in the East. There were always other Churches. The Celtic Church, the Coptic Orthodox Church and the Oriental Orthodox Churches were very early and all predated the Middle Ages. The Celtic Christian Church was absorbed by the Catholic Church, but the others continue. There were also heterodox organizations outside orthodox Christianity, and some of these were declared heretical, in some cases resulting in military operations.
It was very important. It ruled the world as the second incarnation of the Roman Empire.
The value of humanism fourished in the Renaissance, it was very common amongst people. While in the Middle Ages, people were strongly Catholic, and followed the church at all costs.
The medieval buildings that have survived best in Europe are mainly castles and churches, especially cathedrals. This suggests that the Middle Ages was a time when violent grandees imposed their will by force on others; it was often marked by lawlessness. It was also a society where the power and wealth of the Church were enormous ... There are also a few fine residential buildings, especially in Italy, but they tend to be from the very late Middle Ages.
There was only one organization that had broad authority over most of western Europe during the Middle Ages, which was the Church. You should understand, however, that the authority of the Church was always limited by secular authority and internal division, and was very often challenged by the various emperors and kings, so to call it the central authority is not entirely accurate.
The church was the main power in Europe during the middle ages so anything that might contradict them risked them losing their immense power, also the people were very superstitious and seriously believed it to be a major crime.
None, since the Roman Empire fell apart in about 400 AD and the Middle Ages started over 500 years later. The Church faced numerous problems during the fall of the Roman Empire, which eventually led to the Western Church (now the Roman Catholic Church) and the Eastern Church (now the Greek Orthodox Church) to split and excommunicate the other. During the Middle Ages, the Church became very influential with the royal and noble households and had practically untouchable political and economic power.
The peasants of the Middle Ages had very few responsibilities.
Back then the church wanted power, and at the time the most powerful thing was knowledge, so they had to find a way to control it. Many people did not know how to read or write except them. Thus dominating the middle ages. Also the church was very adequate when it came to their religion, they had to try to spread it around. And it looks like they succeeded in that.