The bishop of Rome and the head of the Roman Catholic Church.

He is the one that dictated what went on in the church and in the lives of people who went to church.

A person who is sent out to carry a religious message.

This was how religions were spread throughout the world, especially Christianity.

Political and social system that developed during the Middle Ages.

It was the dominant social system in Medieval Europe. 

The nobility held lands from the Crown in exchange for military service. 

Peasants were required to live on the lord's land and work for them in exchange for military protection.

Under Feudalism, a man who served a lord in military capacity. 

Also, a holder of land by feudal tenure on conditions of homage and allegiance

- a person or country in a subordinate position to another

A member of the heavily armored cavalry.

A man who served his soverign or lord as a mounted soldier in armor.

A member of the class of equites.

The ideal of civilized that developed among the nobility. 

It was a knights code of conduct.

A series or martial activities such as jousts designed to keep knights busy.

These could determine how honorable knights were.

Head of the Eastern Orthodox Church, originally appointed by the Byzantine emperor.

A bishop of one of the most ancient Christian sees.

A Roman Catholic bishop ranking above primates and metropolitans and immediately below the pope

An unbeliever, a term applied to the Muslims during the Crusades.

They were people who didn't believe in religion or who adheres to a religion other than one's own. 

An agriculture estate run by a lord and worked by peasants. 

Often it was seen as a large country house with a lot of land

A business associated with a particular trade or craft

The study of religion and God.

A medieval philosophical and theological system that tried to reconcile faith and reason.

It was based on Aristotelian logic and the writings of early Church Fathers. 

Had a strong emphasis on tradition and dogma.

The language of everyday speech in a particular region.

For Jews in Germany it would be Jewish, etc.

A form of bubonic plague, spread by fleas carried by rats.

It killed off nearly 1/3 to 1/2 of the population in only a few months. 

It originated in central Asia and China and spread rapidly through Europe.

Hostility toward or discrimination against Jews.

This may have been where it all started for Hitler.

Emperor of the Eastern Roman Empire - created a code of laws used in Byzantine.

He regained North Africa from the Vandals, Italy from the Ostrogoths, and Spain from the Visigoths. He codified Roman law 529.

Government in which power had been centralized under a king or queen.

Examples: England, the Netherlands, Spain, etc.

The "Great Charter" of rights, which King John was forced to sign by the English nobles at the Runnymede in 1215.

It was a charter of liberty and political rights.

It came to be seen as the seminal document of English constitutional practice.

The king of the Franks - centralized power in Europe for a time.

He was also the Holy Roman Emperor. 

He promoted the arts and education, and his court became the cultural center of the Carolingian Renaissance.