The aim of this thesis is to portray the relationship between Jews and Christians during Europes Middle Ages. After an secondary-literature based introduction of facts of Jewish life in the Middle Ages the main focus turns to written sources of Jewish life in late Medieval Times in Austria, Styria and Graz. During the Middle Ages, Jewish life was governed by antique Roman law, as well as Christian believes and emperors secular interests. Jews were dependant on the sovereigns patronage to live a safe life. Whenever natural disasters occurred, however, Jews fell from grace and were accused of having caused these disasters. Moreover, Christian clerks promoted the idea of Jews being guilty of Jesus death and therefore having to be excluded from society as a punishment. Even though Christianity developed from Judaism, the relationship between these two religions has tensioned over the past thousand years. During the Middle Ages Christians tried to exclude Jews from their communities by blaming them for various religious incidents and natural disasters. In the last century of the Middle Ages, the Jewish- Christian relationship hit rock bottom and Jews were banished from Christian territories and cities. However, Jews were not treated and hunted down equally in all areas of the Holy Roman Empire. In some areas, Jews lived more peacefully than compared to other areas. The reasons for these circumstances and developments concerning Jewish lives in Austria, Styria and Graz will be examined in this thesis.